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Volumn 69, Issue 11, 2011, Pages 1117-1123

Frontal hyperconnectivity related to discounting and reversal learning in cocaine subjects

Author keywords

Anterior cingulate; cocaine; delayed discount; frontal; functional connectivity; reversal learning

Indexed keywords

COCAINE;

EID: 79955778949     PISSN: 00063223     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.biopsych.2011.01.008     Document Type: Article
Times cited : (103)

References (51)
  • 1
    • 3042759468 scopus 로고    scopus 로고
    • Severity of neuropsychological impairment in cocaine and alcohol addiction: Association with metabolism in the prefrontal cortex
    • DOI 10.1016/j.neuropsychologia.2004.04.002, PII S0028393204000715
    • R.Z. Goldstein, A.C. Leskovjan, A.L. Hoff, R. Hitzemann, F. Bashan, and S.S. Khalsa Severity of neuropsychological impairment in cocaine and alcohol addiction: Association with metabolism in the prefrontal cortex Neuropsychologia 42 2004 1447 1458 (Pubitemid 38891392)
    • (2004) Neuropsychologia , vol.42 , Issue.11 , pp. 1447-1458
    • Goldstein, R.Z.1    Leskovjan, A.C.2    Hoff, A.L.3    Hitzemann, R.4    Bashan, F.5    Khalsa, S.S.6    Wang, G.-J.7    Fowler, J.S.8    Volkow, N.D.9
  • 2
    • 74949100744 scopus 로고    scopus 로고
    • Executive control deficits in substance-dependent individuals: A comparison of alcohol, cocaine, and methamphetamine and of men and women
    • E.A. van der Plas, E.A. Crone, W.P. van den Wildenberg, D. Tranel, and A. Bechara Executive control deficits in substance-dependent individuals: A comparison of alcohol, cocaine, and methamphetamine and of men and women J Clin Exp Neuropsychol 31 2009 706 719
    • (2009) J Clin Exp Neuropsychol , vol.31 , pp. 706-719
    • Van Der Plas, E.A.1    Crone, E.A.2    Van Den Wildenberg, W.P.3    Tranel, D.4    Bechara, A.5
  • 3
    • 1942438166 scopus 로고    scopus 로고
    • Heroin and cocaine abusers have higher discount rates for delayed rewards than alcoholics or non-drug-using controls
    • DOI 10.1111/j.1360-0443.2003.00669.x
    • K.N. Kirby, and N.M. Petry Heroin and cocaine abusers have higher discount rates for delayed rewards than alcoholics or non-drug-using controls Addiction 99 2004 461 471 (Pubitemid 38496662)
    • (2004) Addiction , vol.99 , Issue.4 , pp. 461-471
    • Kirby, K.N.1    Petry, N.M.2
  • 4
    • 33745208685 scopus 로고    scopus 로고
    • Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched controls
    • S.H. Heil, M.W. Johnson, S.T. Higgins, and W.K. Bickel Delay discounting in currently using and currently abstinent cocaine-dependent outpatients and non-drug-using matched controls Addict Behav 31 2006 1290 1294
    • (2006) Addict Behav , vol.31 , pp. 1290-1294
    • Heil, S.H.1    Johnson, M.W.2    Higgins, S.T.3    Bickel, W.K.4
  • 5
    • 29444450450 scopus 로고    scopus 로고
    • Differences in impulsivity and risk-taking propensity between primary users of crack cocaine and primary users of heroin in a residential substance-use program
    • DOI 10.1037/1064-1297.13.4.311
    • M.A. Bornovalova, S.B. Daughters, G.D. Hernandez, J.B. Richards, and C.W. Lejuez Differences in impulsivity and risk-taking propensity between primary users of crack cocaine and primary users of heroin in a residential substance-use program Exp Clin Psychopharmacol 13 2005 311 318 (Pubitemid 43011156)
    • (2005) Experimental and Clinical Psychopharmacology , vol.13 , Issue.4 , pp. 311-318
    • Bornovalova, M.A.1    Daughters, S.B.2    Hernandez, G.D.3    Richards, J.B.4    Lejuez, C.W.5
  • 6
    • 43149105981 scopus 로고    scopus 로고
    • Chronic cocaine but not chronic amphetamine use is associated with perseverative responding in humans
    • K.D. Ersche, J.P. Roiser, T.W. Robbins, and B.J. Sahakian Chronic cocaine but not chronic amphetamine use is associated with perseverative responding in humans Psychopharmacology (Berl) 197 2008 421 431
    • (2008) Psychopharmacology (Berl) , vol.197 , pp. 421-431
    • Ersche, K.D.1    Roiser, J.P.2    Robbins, T.W.3    Sahakian, B.J.4
  • 7
    • 0036603578 scopus 로고    scopus 로고
    • Reduced frontal white matter integrity in cocaine dependence: A controlled diffusion tensor imaging study
    • DOI 10.1016/S0006-3223(01)01355-5, PII S0006322301013555
    • K.O. Lim, S.J. Choi, N. Pomara, A. Wolkin, and J.P. Rotrosen Reduced frontal white matter integrity in cocaine dependence: A controlled diffusion tensor imaging study Biol Psychiatry 51 2002 890 895 (Pubitemid 34521937)
    • (2002) Biological Psychiatry , vol.51 , Issue.11 , pp. 890-895
    • Lim, K.O.1    Choi, S.J.2    Pomara, N.3    Wolkin, A.4    Rotrosen, J.P.5
  • 9
    • 76749109844 scopus 로고    scopus 로고
    • Working memory fMRI activation in cocaine-dependent subjects: Association with treatment response
    • F.G. Moeller, J.L. Steinberg, J.M. Schmitz, L. Ma, S. Liu, and K.L. Kjome Working memory fMRI activation in cocaine-dependent subjects: Association with treatment response Psychiatry Res 181 2010 174 182
    • (2010) Psychiatry Res , vol.181 , pp. 174-182
    • Moeller, F.G.1    Steinberg, J.L.2    Schmitz, J.M.3    Ma, L.4    Liu, S.5    Kjome, K.L.6
  • 10
    • 72149090642 scopus 로고    scopus 로고
    • Cocaine addiction: Diffusion tensor imaging study of the inferior frontal and anterior cingulate white matter
    • M.J. Romero, S. Asensio, C. Palau, A. Sanchez, and F.J. Romero Cocaine addiction: Diffusion tensor imaging study of the inferior frontal and anterior cingulate white matter Psychiatry Res 181 2010 57 63
    • (2010) Psychiatry Res , vol.181 , pp. 57-63
    • Romero, M.J.1    Asensio, S.2    Palau, C.3    Sanchez, A.4    Romero, F.J.5
  • 12
    • 10944264984 scopus 로고    scopus 로고
    • Executive dysfunction in cocaine addiction: Evidence for discordant frontal, cingulate, and cerebellar activity
    • DOI 10.1523/JNEUROSCI.3321-04.2004
    • R. Hester, and H. Garavan Executive dysfunction in cocaine addiction: Evidence for discordant frontal, cingulate, and cerebellar activity J Neurosci 24 2004 11017 11022 (Pubitemid 40012960)
    • (2004) Journal of Neuroscience , vol.24 , Issue.49 , pp. 11017-11022
    • Hester, R.1    Garavan, H.2
  • 15
    • 0036787356 scopus 로고    scopus 로고
    • Drug addiction and its underlying neurobiological basis: Neuroimaging evidence for the involvement of the frontal cortex
    • R.Z. Goldstein, and N.D. Volkow Drug addiction and its underlying neurobiological basis: Neuroimaging evidence for the involvement of the frontal cortex Am J Psychiatry 159 2002 1642 1652
    • (2002) Am J Psychiatry , vol.159 , pp. 1642-1652
    • Goldstein, R.Z.1    Volkow, N.D.2
  • 16
    • 0025971153 scopus 로고
    • Supersensitivity to the reinforcing effects of cocaine following 6-hydroxydopamine lesions to the medial prefrontal cortex in rats
    • S. Schenk, B.A. Horger, R. Peltier, and K. Shelton Supersensitivity to the reinforcing effects of cocaine following 6-hydroxydopamine lesions to the medial prefrontal cortex in rats Brain Res 543 1991 227 235
    • (1991) Brain Res , vol.543 , pp. 227-235
    • Schenk, S.1    Horger, B.A.2    Peltier, R.3    Shelton, K.4
  • 17
    • 0022894950 scopus 로고
    • Reinforcing properties of cocaine in the medial prefrontal cortex: Primary action on presynaptic dopaminergic terminals
    • N.E. Goeders, and J.E. Smith Reinforcing properties of cocaine in the medical prefrontal cortex: Primary action on presynaptic dopaminergic terminals Pharmacol Biochem Behav 25 1986 191 199 (Pubitemid 16040924)
    • (1986) Pharmacology Biochemistry and Behavior , vol.25 , Issue.1 , pp. 191-199
    • Goeders, N.E.1    Smith, J.E.2
  • 18
    • 0042671143 scopus 로고    scopus 로고
    • Frontal cortical tissue composition in abstinent cocaine abusers: A magnetic resonance imaging study
    • DOI 10.1016/S1053-8119(03)00244-1
    • J.A. Matochik, E.D. London, D.A. Eldreth, J.L. Cadet, and K.I. Bolla Frontal cortical tissue composition in abstinent cocaine abusers: A magnetic resonance imaging study Neuroimage 19 2003 1095 1102 (Pubitemid 36918247)
    • (2003) NeuroImage , vol.19 , Issue.3 , pp. 1095-1102
    • Matochik, J.A.1    London, E.D.2    Eldreth, D.A.3    Cadet, J.-L.4    Bolla, K.I.5
  • 19
    • 0037081516 scopus 로고    scopus 로고
    • Decreased gray matter concentration in the insular, orbitofrontal, cingulate, and temporal cortices of cocaine patients
    • DOI 10.1016/S0006-3223(01)01269-0, PII S0006322301012690
    • T.R. Franklin, P.D. Acton, J.A. Maldjian, J.D. Gray, J.R. Croft, and C.A. Dackis Decreased gray matter concentration in the insular, orbitofrontal, cingulate, and temporal cortices of cocaine patients Biol Psychiatry 51 2002 134 142 (Pubitemid 34127903)
    • (2002) Biological Psychiatry , vol.51 , Issue.2 , pp. 134-142
    • Franklin, T.R.1    Acton, P.D.2    Maldjian, J.A.3    Gray, J.D.4    Croft, J.R.5    Dackis, C.A.6    O'Brien, C.P.7    Childress, A.R.8
  • 21
    • 0033766993 scopus 로고    scopus 로고
    • Cue-induced cocaine craving: Neuroanatomical specificity for drug users and drug stimuli
    • H. Garavan, J. Pankiewicz, A. Bloom, J.K. Cho, L. Sperry, and T.J. Ross Cue-induced cocaine craving: Neuroanatomical specificity for drug users and drug stimuli Am J Psychiatry 157 2000 1789 1798
    • (2000) Am J Psychiatry , vol.157 , pp. 1789-1798
    • Garavan, H.1    Pankiewicz, J.2    Bloom, A.3    Cho, J.K.4    Sperry, L.5    Ross, T.J.6
  • 22
    • 44949159748 scopus 로고    scopus 로고
    • Modulation of temporally coherent brain networks estimated using ICA at rest and during cognitive tasks
    • DOI 10.1002/hbm.20581
    • V.D. Calhoun, K.A. Kiehl, and G.D. Pearlson Modulation of temporally coherent brain networks estimated using ICA at rest and during cognitive tasks Hum Brain Mapp 29 2008 828 838 (Pubitemid 351813084)
    • (2008) Human Brain Mapping , vol.29 , Issue.7 , pp. 828-838
    • Calhoun, V.D.1    Kiehl, K.A.2    Pearlson, G.D.3
  • 23
    • 77956061301 scopus 로고    scopus 로고
    • Mesocorticolimbic circuits are impaired in chronic cocaine users as demonstrated by resting-state functional connectivity
    • H. Gu, B.J. Salmeron, T.J. Ross, X. Geng, W. Zhan, E.A. Stein, and Y. Yang Mesocorticolimbic circuits are impaired in chronic cocaine users as demonstrated by resting-state functional connectivity Neuroimage 53 2010 593 601
    • (2010) Neuroimage , vol.53 , pp. 593-601
    • Gu, H.1    Salmeron, B.J.2    Ross, T.J.3    Geng, X.4    Zhan, W.5    Stein, E.A.6    Yang, Y.7
  • 25
    • 59749088439 scopus 로고    scopus 로고
    • Development of anterior cingulate functional connectivity from late childhood to early adulthood
    • A.M. Kelly, A. Di Martino, L.Q. Uddin, Z. Shehzad, D.G. Gee, and P.T. Reiss Development of anterior cingulate functional connectivity from late childhood to early adulthood Cereb Cortex 19 2009 640 657
    • (2009) Cereb Cortex , vol.19 , pp. 640-657
    • Kelly, A.M.1    Di Martino, A.2    Uddin, L.Q.3    Shehzad, Z.4    Gee, D.G.5    Reiss, P.T.6
  • 26
    • 0034625673 scopus 로고    scopus 로고
    • Dissociating the role of the dorsolateral prefrontal and anterior cingulate cortex in cognitive control
    • DOI 10.1126/science.288.5472.1835
    • A.W. MacDonald 3rd, J.D. Cohen, V.A. Stenger, and C.S. Carter Dissociating the role of the dorsolateral prefrontal and anterior cingulate cortex in cognitive control Science 288 2000 1835 1838 (Pubitemid 30399023)
    • (2000) Science , vol.288 , Issue.5472 , pp. 1835-1838
    • MacDonald III, A.W.1    Cohen, J.D.2    Andrew Stenger, V.3    Carter, C.S.4
  • 27
    • 1142286344 scopus 로고    scopus 로고
    • Anterior Cingulate Conflict Monitoring and Adjustments in Control
    • DOI 10.1126/science.1089910
    • J.G. Kerns, J.D. Cohen, A.W. MacDonald 3rd, R.Y. Cho, V.A. Stenger, and C.S. Carter Anterior cingulate conflict monitoring and adjustments in control Science 303 2004 1023 1026 (Pubitemid 38209708)
    • (2004) Science , vol.303 , Issue.5660 , pp. 1023-1026
    • Kerns, J.G.1    Cohen, J.D.2    MacDonald III, A.W.3    Cho, R.Y.4    Stenger, V.A.5    Carter, C.S.6
  • 28
    • 34548851726 scopus 로고    scopus 로고
    • Mapping the functional connectivity of anterior cingulate cortex
    • DOI 10.1016/j.neuroimage.2007.05.019, PII S1053811907004090
    • D.S. Margulies, A.M. Kelly, L.Q. Uddin, B.B. Biswal, F.X. Castellanos, and M.P. Milham Mapping the functional connectivity of anterior cingulate cortex Neuroimage 37 2007 579 588 (Pubitemid 47444255)
    • (2007) NeuroImage , vol.37 , Issue.2 , pp. 579-588
    • Margulies, D.S.1    Kelly, A.M.C.2    Uddin, L.Q.3    Biswal, B.B.4    Castellanos, F.X.5    Milham, M.P.6
  • 29
    • 77957845412 scopus 로고    scopus 로고
    • Reactive mechanism of cognitive control system
    • Y. Morishima, J. Okuda, and K. Sakai Reactive mechanism of cognitive control system Cereb Cortex 20 2010 2675 2683
    • (2010) Cereb Cortex , vol.20 , pp. 2675-2683
    • Morishima, Y.1    Okuda, J.2    Sakai, K.3
  • 30
    • 60449110514 scopus 로고    scopus 로고
    • Synapses with inhibitory neurons differentiate anterior cingulate from dorsolateral prefrontal pathways associated with cognitive control
    • M. Medalla, and H. Barbas Synapses with inhibitory neurons differentiate anterior cingulate from dorsolateral prefrontal pathways associated with cognitive control Neuron 61 2009 609 620
    • (2009) Neuron , vol.61 , pp. 609-620
    • Medalla, M.1    Barbas, H.2
  • 33
    • 77953958289 scopus 로고    scopus 로고
    • Altered functional and anatomical connectivity in schizophrenia [published online ahead of print November 17]
    • J. Camchong, A.W. Macdonald 3rd, C. Bell, B.A. Mueller, and K.O. Lim Altered functional and anatomical connectivity in schizophrenia [published online ahead of print November 17] Schizophr Bull 2009
    • (2009) Schizophr Bull
    • Camchong, J.1    Macdonald III, A.W.2    Bell, C.3    Mueller, B.A.4    Lim, K.O.5
  • 36
    • 0033951302 scopus 로고    scopus 로고
    • Probabilistic learning and reversal deficits in patients with Parkinson's disease or frontal or temporal lobe lesions: Possible adverse effects of dopaminergic medication
    • DOI 10.1016/S0028-3932(99)00103-7, PII S0028393299001037
    • R. Swainson, R.D. Rogers, B.J. Sahakian, B.A. Summers, C.E. Polkey, and T.W. Robbins Probabilistic learning and reversal deficits in patients with Parkinson's disease or frontal or temporal lobe lesions: Possible adverse effects of dopaminergic medication Neuropsychologia 38 2000 596 612 (Pubitemid 30109440)
    • (2000) Neuropsychologia , vol.38 , Issue.5 , pp. 596-612
    • Swainson, R.1    Rogers, R.D.2    Sahakian, B.J.3    Summers, B.A.4    Polkey, C.E.5    Robbins, T.W.6
  • 37
    • 0032746113 scopus 로고    scopus 로고
    • Beyond discounting: Possible experimental models of impulse control
    • DOI 10.1007/PL00005480
    • J. Monterosso, and G. Ainslie Beyond discounting: Possible experimental models of impulse control Psychopharmacology Berl 146 1999 339 347 (Pubitemid 29513275)
    • (1999) Psychopharmacology , vol.146 , Issue.4 , pp. 339-347
    • Monterosso, J.1    Ainslie, G.2
  • 38
    • 0033091170 scopus 로고    scopus 로고
    • Heroin addicts have higher discount rates for delayed rewards than non-drug-using controls
    • K.N. Kirby, N.M. Petry, and W.K. Bickel Heroin addicts have higher discount rates for delayed rewards than non-drug-using controls J Exp Psychol Gen 128 1999 78 87
    • (1999) J Exp Psychol Gen , vol.128 , pp. 78-87
    • Kirby, K.N.1    Petry, N.M.2    Bickel, W.K.3
  • 39
    • 0030305457 scopus 로고    scopus 로고
    • R: A language for data analysis and graphics
    • R. Ihaka, and R. Gentleman R: A language for data analysis and graphics J Comput Graph Stat 5 1996 299 314
    • (1996) J Comput Graph Stat , vol.5 , pp. 299-314
    • Ihaka, R.1    Gentleman, R.2
  • 40
    • 1942511158 scopus 로고    scopus 로고
    • Architectonic subdivision of the human orbital and medial prefrontal cortex
    • DOI 10.1002/cne.10609
    • D. Ongur, A.T. Ferry, and J.L. Price Architectonic subdivision of the human orbital and medial prefrontal cortex J Comp Neurol 460 2003 425 449 (Pubitemid 36514619)
    • (2003) Journal of Comparative Neurology , vol.460 , Issue.3 , pp. 425-449
    • Ongur, D.1    Ferry, A.T.2    Price, J.L.3
  • 41
    • 0037090574 scopus 로고    scopus 로고
    • Brain maturation may be arrested in chronic cocaine addicts
    • DOI 10.1016/S0006-3223(02)01315-X, PII S000632230201315X
    • G. Bartzokis, M. Beckson, P.H. Lu, N. Edwards, P. Bridge, and J. Mintz Brain maturation may be arrested in chronic cocaine addicts Biol Psychiatry 51 2002 605 611 (Pubitemid 34310497)
    • (2002) Biological Psychiatry , vol.51 , Issue.8 , pp. 605-611
    • Bartzokis, G.1    Beckson, M.2    Lu, P.H.3    Edwards, N.4    Bridge, P.5    Mintz, J.6
  • 42
    • 38149140910 scopus 로고    scopus 로고
    • Serial reversal learning and the evolution of behavioral flexibility in three species of North American corvids (Gymnorhinus cyanocephalus, Aphelocoma californica)
    • A.B. Bond, A.C. Kamil, and R.P. Balda Serial reversal learning and the evolution of behavioral flexibility in three species of North American corvids (Gymnorhinus cyanocephalus, Aphelocoma californica) J Comp Psychol 121 2007 372 379
    • (2007) J Comp Psychol , vol.121 , pp. 372-379
    • Bond, A.B.1    Kamil, A.C.2    Balda, R.P.3
  • 43
    • 0036228077 scopus 로고    scopus 로고
    • Adolescent substance use disorders and comorbidity
    • DOI 10.1016/S0031-3955(01)00014-1, PII S0031395501000141
    • D.R. Simkin Adolescent substance use disorders and comorbidity Pediatr Clin North Am 49 2002 463 477 (Pubitemid 34441069)
    • (2002) Pediatric Clinics of North America , vol.49 , Issue.2 , pp. 463-477
    • Simkin, D.R.1
  • 45
    • 76749117001 scopus 로고    scopus 로고
    • Brain activations reflect individual discount rates in intertemporal choice
    • J. Marco-Pallares, B. Mohammadi, A. Samii, and T.F. Munte Brain activations reflect individual discount rates in intertemporal choice Brain Res 1320 2010 123 129
    • (2010) Brain Res , vol.1320 , pp. 123-129
    • Marco-Pallares, J.1    Mohammadi, B.2    Samii, A.3    Munte, T.F.4
  • 46
    • 5144224271 scopus 로고    scopus 로고
    • Separate neural systems value immediate and delayed monetary rewards
    • DOI 10.1126/science.1100907
    • S.M. McClure, D.I. Laibson, G. Loewenstein, and J.D. Cohen Separate neural systems value immediate and delayed monetary rewards Science 306 2004 503 507 (Pubitemid 39372453)
    • (2004) Science , vol.306 , Issue.5695 , pp. 503-507
    • McClure, S.M.1    Laibson, D.I.2    Loewenstein, G.3    Cohen, J.D.4
  • 48
    • 71749114329 scopus 로고    scopus 로고
    • Test-retest reliability of event-related functional MRI in a probabilistic reversal learning task
    • T. Freyer, G. Valerius, A.K. Kuelz, O. Speck, V. Glauche, M. Hull, and U. Voderholzer Test-retest reliability of event-related functional MRI in a probabilistic reversal learning task Psychiatry Res 174 2009 40 46
    • (2009) Psychiatry Res , vol.174 , pp. 40-46
    • Freyer, T.1    Valerius, G.2    Kuelz, A.K.3    Speck, O.4    Glauche, V.5    Hull, M.6    Voderholzer, U.7
  • 49
    • 77955767940 scopus 로고    scopus 로고
    • Cross-correlation of instantaneous amplitudes of field potential oscillations: A straightforward method to estimate the directionality and lag between brain areas
    • A. Adhikari, T. Sigurdsson, M.A. Topiwala, and J.A. Gordon Cross-correlation of instantaneous amplitudes of field potential oscillations: A straightforward method to estimate the directionality and lag between brain areas J Neurosci Methods 191 2010 191 200
    • (2010) J Neurosci Methods , vol.191 , pp. 191-200
    • Adhikari, A.1    Sigurdsson, T.2    Topiwala, M.A.3    Gordon, J.A.4
  • 50
    • 77955056901 scopus 로고    scopus 로고
    • Data-driven approach to the estimation of connectivity and time delays in the coupling of interacting neuronal subsystems
    • A.N. Silchenko, I. Adamchic, N. Pawelczyk, C. Hauptmann, M. Maarouf, V. Sturm, and P.A. Tass Data-driven approach to the estimation of connectivity and time delays in the coupling of interacting neuronal subsystems J Neurosci Methods 191 2010 32 44
    • (2010) J Neurosci Methods , vol.191 , pp. 32-44
    • Silchenko, A.N.1    Adamchic, I.2    Pawelczyk, N.3    Hauptmann, C.4    Maarouf, M.5    Sturm, V.6    Tass, P.A.7
  • 51
    • 54149112120 scopus 로고    scopus 로고
    • Measuring brain connectivity: Diffusion tensor imaging validates resting state temporal correlations
    • P. Skudlarski, K. Jagannathan, V.D. Calhoun, M. Hampson, B.A. Skudlarska, and G. Pearlson Measuring brain connectivity: Diffusion tensor imaging validates resting state temporal correlations Neuroimage 43 2008 554 561
    • (2008) Neuroimage , vol.43 , pp. 554-561
    • Skudlarski, P.1    Jagannathan, K.2    Calhoun, V.D.3    Hampson, M.4    Skudlarska, B.A.5    Pearlson, G.6


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.