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Volumn 78, Issue 6, 1997, Pages 3095-3106

Conditioning-related protection from acoustic injury: Effects of chronic deefferentation and sham surgery

Author keywords

[No Author keywords available]

Indexed keywords

ACTION POTENTIAL; ANIMAL EXPERIMENT; ANIMAL MODEL; ANIMAL TISSUE; ARTICLE; AUDITORY THRESHOLD SHIFT; COCHLEA; CONTROLLED STUDY; DEAFFERENTATION; DISTORTION PRODUCT OTOACOUSTIC EMISSION; FEMALE; GUINEA PIG; HISTOPATHOLOGY; MALE; NERVE PROJECTION; NEUROPROTECTION; NOISE INJURY; NONHUMAN; OLIVARY NUCLEUS; PRIORITY JOURNAL;

EID: 0031405972     PISSN: 00223077     EISSN: None     Source Type: Journal    
DOI: 10.1152/jn.1997.78.6.3095     Document Type: Article
Times cited : (120)

References (51)
  • 1
    • 84990579921 scopus 로고
    • Fibre spectrum of the vestibulo-cochlear anastomosis in the cat
    • ARNESEN, A. R. AND OSEN, K. K. Fibre spectrum of the vestibulo-cochlear anastomosis in the cat. Acta Otolaryngol. (Stockh.) 98: 225-269, 1984.
    • (1984) Acta Otolaryngol. (Stockh.) , vol.98 , pp. 225-269
    • Arnesen, A.R.1    Osen, K.K.2
  • 2
    • 0026589813 scopus 로고
    • Hypothetical roles of middle ear muscles in the guinea-pig
    • AVAN, P., LOTH, D., MENGUY, C., AND TEYSSOU. M. Hypothetical roles of middle ear muscles in the guinea-pig. Hear. Res. 59: 59-69, 1992.
    • (1992) Hear. Res. , vol.59 , pp. 59-69
    • Avan, P.1    Loth, D.2    Menguy, C.3    Teyssou, M.4
  • 3
    • 0026768217 scopus 로고
    • Physiological and histological changes associated with the reduction in threshold shift during interrupted noise exposure
    • BOETTCHER, F. A., SPONGR, V. P., AND SALVI, R. J. Physiological and histological changes associated with the reduction in threshold shift during interrupted noise exposure. Hear. Res. 62: 217-236, 1992.
    • (1992) Hear. Res. , vol.62 , pp. 217-236
    • Boettcher, F.A.1    Spongr, V.P.2    Salvi, R.J.3
  • 4
    • 0024391585 scopus 로고
    • Morphology and response properties of single olivocochlear efferents in the guinea pig
    • BROWN, M. C. Morphology and response properties of single olivocochlear efferents in the guinea pig. Hear. Res. 40: 93-110, 1989.
    • (1989) Hear. Res. , vol.40 , pp. 93-110
    • Brown, M.C.1
  • 5
    • 85046498393 scopus 로고    scopus 로고
    • Single olivocochlear neurons in the guinea pig. II. Response plasticity due to noise conditioning
    • In press
    • BROWN, M. C., KUJAWA, S. G., AND LIBERMAN, M. C. Single olivocochlear neurons in the guinea pig. II. Response plasticity due to noise conditioning. J. Neurophysiol. In press.
    • J. Neurophysiol.
    • Brown, M.C.1    Kujawa, S.G.2    Liberman, M.C.3
  • 6
    • 0002927579 scopus 로고    scopus 로고
    • The effects of sound conditioning on the cochlea
    • edited by R. Salvi and D. Hendserson. New York: Thieme Medical Publishers
    • CANLON, B. The effects of sound conditioning on the cochlea. In: Auditory System Plasticity and Regeneration, edited by R. Salvi and D. Hendserson. New York: Thieme Medical Publishers. 1996, p. 118-127.
    • (1996) Auditory System Plasticity and Regeneration , pp. 118-127
    • Canlon, B.1
  • 7
    • 0023749552 scopus 로고
    • Protection against noise trauma by pre-exposure to a low level acoustic stimulus
    • CANLON, B., BORG, E., AND FLOCK, A. Protection against noise trauma by pre-exposure to a low level acoustic stimulus. Hear. Res. 34: 197-200, 1988.
    • (1988) Hear. Res. , vol.34 , pp. 197-200
    • Canlon, B.1    Borg, E.2    Flock, A.3
  • 8
    • 0002864199 scopus 로고
    • Physiologic and morphologic aspects of low-level acoustic stimulation
    • edited by D.H.A. Dancer, R. J. Salvi, and R. P. Hamernik. St. Louis: Mosby Year Book
    • CANLON, B., BORG, E., AND LOFSTRAND, P. Physiologic and morphologic aspects of low-level acoustic stimulation. In: Noise-Induced Hearing Loss, edited by D.H.A. Dancer, R. J. Salvi, and R. P. Hamernik. St. Louis: Mosby Year Book, 1991, p. 489-499.
    • (1991) Noise-Induced Hearing Loss , pp. 489-499
    • Canlon, B.1    Borg, E.2    Lofstrand, P.3
  • 9
    • 0028912222 scopus 로고
    • Morphological and functional preservation of the outer hair cells from noise trauma by sound conditioning
    • CANLON, B. AND FRANSSON, A. Morphological and functional preservation of the outer hair cells from noise trauma by sound conditioning. Hear. Res. 84: 112-124, 1995.
    • (1995) Hear. Res. , vol.84 , pp. 112-124
    • Canlon, B.1    Fransson, A.2
  • 10
    • 0027325198 scopus 로고
    • Ultrastructural changes in the presynaptic region of outer hair cells after acoustic stimulation
    • CANLON, B., LOFSTRAND, P., AND BORG, E. Ultrastructural changes in the presynaptic region of outer hair cells after acoustic stimulation. Neurosci. Lett. 150: 103-106, 1993.
    • (1993) Neurosci. Lett. , vol.150 , pp. 103-106
    • Canlon, B.1    Lofstrand, P.2    Borg, E.3
  • 11
    • 0021071447 scopus 로고
    • Differential olivocochlear projections from lateral versus medial zones of the superior olivary complex
    • GUINAN, J. J., JR., WARR, W. B., AND NORRIS, B. E. Differential olivocochlear projections from lateral versus medial zones of the superior olivary complex. J. Comp. Neurol. 221: 358-370, 1983.
    • (1983) J. Comp. Neurol. , vol.221 , pp. 358-370
    • Guinan Jr., J.J.1    Warr, W.B.2    Norris, B.E.3
  • 12
    • 0021260422 scopus 로고
    • Topographic organization of the olivocochlear projections from the lateral and medial zones of the superior olivary complex
    • GUINAN, J. J., JR., WARR, W. B., AND NORRIS. B. E. Topographic organization of the olivocochlear projections from the lateral and medial zones of the superior olivary complex. J. Comp. Neurol. 226: 21-27, 1984.
    • (1984) J. Comp. Neurol. , vol.226 , pp. 21-27
    • Guinan Jr., J.J.1    Warr, W.B.2    Norris, B.E.3
  • 13
    • 0020004599 scopus 로고
    • The influence of the efferent system on adaptation, temporary and permanent threshold shift
    • HANDROCK, M. AND ZEISBERG, J. The influence of the efferent system on adaptation, temporary and permanent threshold shift. Arch. Otorhinolaryngol. 234: 191-195, 1982.
    • (1982) Arch. Otorhinolaryngol. , vol.234 , pp. 191-195
    • Handrock, M.1    Zeisberg, J.2
  • 14
    • 0028256060 scopus 로고
    • The role of middle ear muscles in the development of resistance to noise induced hearing loss
    • HENDERSON, D., SUBRAMANIAM, M., PAPAZIAN, M., AND SPONGR, V. P. The role of middle ear muscles in the development of resistance to noise induced hearing loss. Hear. Res. 74: 22-28, 1994.
    • (1994) Hear. Res. , vol.74 , pp. 22-28
    • Henderson, D.1    Subramaniam, M.2    Papazian, M.3    Spongr, V.P.4
  • 16
    • 0002624948 scopus 로고    scopus 로고
    • Sound conditioning enhances cochlear responses in guinea pig
    • KUJAWA, S. G. AND LIBERMAN, M. C. Sound conditioning enhances cochlear responses in guinea pig. Abstr. ARO Midwinter Meet. XIX: 34, 1996.
    • (1996) Abstr. ARO Midwinter Meet. , vol.19 , pp. 34
    • Kujawa, S.G.1    Liberman, M.C.2
  • 17
    • 0024162534 scopus 로고
    • Response properties of cochlear efferent neurons: Monaural vs. binaural stimulation and the effects of noise
    • LIBERMAN, M. C. Response properties of cochlear efferent neurons: monaural vs. binaural stimulation and the effects of noise. J. Neurophysiol. 60: 1779-1798, 1988.
    • (1988) J. Neurophysiol. , vol.60 , pp. 1779-1798
    • Liberman, M.C.1
  • 18
    • 0025155187 scopus 로고
    • Effects of chronic cochlear deeffereniation on auditory-nerve response
    • LIBERMAN, M. C. Effects of chronic cochlear deeffereniation on auditory-nerve response. Hear. Res. 49: 209-224, 1990.
    • (1990) Hear. Res. , vol.49 , pp. 209-224
    • Liberman, M.C.1
  • 19
    • 84907122988 scopus 로고
    • Hair cell condition and auditory nerve response in normal and noise-damaged cochleas
    • LIBERMAN, M. C. AND BEIL, D. G. Hair cell condition and auditory nerve response in normal and noise-damaged cochleas. Acta Otolaryngol. (Stockh.) 88: 161-176, 1979.
    • (1979) Acta Otolaryngol. (Stockh.) , vol.88 , pp. 161-176
    • Liberman, M.C.1    Beil, D.G.2
  • 20
    • 0025146770 scopus 로고
    • Afferent and efferent innervation of the cat cochlea: Quantitative analysis with light and electron microscopy
    • LIBERMAN. M. C., DODDS, L. W., AND PIERCE, S. Afferent and efferent innervation of the cat cochlea: quantitative analysis with light and electron microscopy. J. Comp. Neurol. 301: 443-460, 1990.
    • (1990) J. Comp. Neurol. , vol.301 , pp. 443-460
    • Liberman, M.C.1    Dodds, L.W.2    Pierce, S.3
  • 21
    • 0028826474 scopus 로고
    • Chronic cochlear deefferentation and susceptibility to permanent acoustic injury
    • LIBERMAN, M. C. AND GAO, W. Y. Chronic cochlear deefferentation and susceptibility to permanent acoustic injury. Hear. Res. 90: 158-168, 1995.
    • (1995) Hear. Res. , vol.90 , pp. 158-168
    • Liberman, M.C.1    Gao, W.Y.2
  • 22
    • 0018066811 scopus 로고
    • Acoustic trauma in cats, cochlear pathology and auditory-nerve activity
    • LIBERMAN, M. C. AND KIANG, N.Y.S. Acoustic trauma in cats, cochlear pathology and auditory-nerve activity. Acta Otolaryngol. (Stockh.) 358: 5-63, 1978.
    • (1978) Acta Otolaryngol. (Stockh.) , vol.358 , pp. 5-63
    • Liberman, M.C.1    Kiang, N.Y.S.2
  • 23
    • 0027166004 scopus 로고
    • Detection of HSP 72 synthesis after acoustic overstimulation in rat cochlea
    • LIM, H. H., JENKINS, O. H., MYERS, M. W., AND ALTSHULER, R. A. Detection of HSP 72 synthesis after acoustic overstimulation in rat cochlea. Hear. Res. 69: 146-150, 1993.
    • (1993) Hear. Res. , vol.69 , pp. 146-150
    • Lim, H.H.1    Jenkins, O.H.2    Myers, M.W.3    Altshuler, R.A.4
  • 25
    • 0019170856 scopus 로고
    • Changes in endolymphatic potential and crossed olivocochlear bundle stimulation alter cochlear mechanics
    • MOUNTAIN, D. C. Changes in endolymphatic potential and crossed olivocochlear bundle stimulation alter cochlear mechanics. Science 210: 71-72, 1980.
    • (1980) Science , vol.210 , pp. 71-72
    • Mountain, D.C.1
  • 26
    • 0026536728 scopus 로고
    • Temporary threshold shift due to noise exposure in guinea pigs under emotional stress
    • MUCHNIK, C., SAHARTOV, E., PELEG, E., AND HILDESHEIMER, M. Temporary threshold shift due to noise exposure in guinea pigs under emotional stress. Hear. Res. 58: 101-106, 1992.
    • (1992) Hear. Res. , vol.58 , pp. 101-106
    • Muchnik, C.1    Sahartov, E.2    Peleg, E.3    Hildesheimer, M.4
  • 27
    • 0014607052 scopus 로고
    • Histochemical localization of cholinesterases in the cochlear nuclei of the cat with notes on the origin of acetylcholinesterase-positive afferents and the superior olive
    • OSEN, K. K. AND ROTH, K. Histochemical localization of cholinesterases in the cochlear nuclei of the cat with notes on the origin of acetylcholinesterase-positive afferents and the superior olive. Brain Res. 16: 165-185, 1969.
    • (1969) Brain Res. , vol.16 , pp. 165-185
    • Osen, K.K.1    Roth, K.2
  • 28
    • 0024261980 scopus 로고
    • An ipsilateral cochlear efferent loop protects the cochlea during intense sound exposure
    • PUEL, J. L., BOBBIN, R. P., AND FALLON, M. An ipsilateral cochlear efferent loop protects the cochlea during intense sound exposure. Hear. Res. 37: 65-70, 1988.
    • (1988) Hear. Res. , vol.37 , pp. 65-70
    • Puel, J.L.1    Bobbin, R.P.2    Fallon, M.3
  • 29
    • 0023788402 scopus 로고
    • Effect of electrical stimulation of the crossed olivocochlear bundle on temporary threshold shifts. II. Dependence on the level of temporary threshold shifts
    • RAJAN, R. Effect of electrical stimulation of the crossed olivocochlear bundle on temporary threshold shifts. II. Dependence on the level of temporary threshold shifts. J. Neurophysiol. 60: 569-579, 1988.
    • (1988) J. Neurophysiol. , vol.60 , pp. 569-579
    • Rajan, R.1
  • 30
    • 0002597045 scopus 로고
    • Protective functions of the efferent pathways to the mammalian cochlea: A review
    • edited by D.H.A. Dancer, R. J. Salvi, and R. P. Hamernik. St. Louis: Mosby Year Book
    • RAJAN, R. Protective functions of the efferent pathways to the mammalian cochlea: a review. Noise-Induced Hearing Loss, edited by D.H.A. Dancer, R. J. Salvi, and R. P. Hamernik. St. Louis: Mosby Year Book, 1991, p. 429-444.
    • (1991) Noise-Induced Hearing Loss , pp. 429-444
    • Rajan, R.1
  • 31
    • 0029122855 scopus 로고
    • Frequency and loss dependence of the olivocochlear pathway in cats
    • RAJAN, R. Frequency and loss dependence of the olivocochlear pathway in cats. J. Neurophysiol. 74: 582-598, 1995.
    • (1995) J. Neurophysiol. , vol.74 , pp. 582-598
    • Rajan, R.1
  • 32
    • 0028968496 scopus 로고
    • Effect of stress on cochlear glucocorticoid protein: Acoustic stress
    • RAREY, K. E., GERHARDT, K. J., CURTIS, L. M., AND TEN CATE, W.-J.F. Effect of stress on cochlear glucocorticoid protein: acoustic stress. Hear. Res. 82: 135-138, 1995.
    • (1995) Hear. Res. , vol.82 , pp. 135-138
    • Rarey, K.E.1    Gerhardt, K.J.2    Curtis, L.M.3    Ten Cate, W.-J.F.4
  • 33
    • 85039334694 scopus 로고
    • A protective role for the olivocochlear efferents in acoustic overstimulation?
    • REITER, E. R. AND LIBERMAN, M. C. A protective role for the olivocochlear efferents in acoustic overstimulation? Abstr. ARO Midwinter Meet. XIV: 157, 1991.
    • (1991) Abstr. ARO Midwinter Meet. , vol.14 , pp. 157
    • Reiter, E.R.1    Liberman, M.C.2
  • 34
    • 0028904702 scopus 로고
    • Efferent-mediated protection from acoustic overexposure: Relation to slow effects of olivocochlear stimulation
    • REITER, E. R. AND LIBERMAN, M. C. Efferent-mediated protection from acoustic overexposure: relation to slow effects of olivocochlear stimulation. J. Neurophysiol. 73: 506-514, 1995.
    • (1995) J. Neurophysiol. , vol.73 , pp. 506-514
    • Reiter, E.R.1    Liberman, M.C.2
  • 35
    • 0023179137 scopus 로고
    • Brainstem organization of efferent projections to the guinea pig cochlea studied using the fluorescent tracers fast blue and diamidino yellow
    • ROBERTSON, D., COLE, K. S., AND HARVEY, A. R. Brainstem organization of efferent projections to the guinea pig cochlea studied using the fluorescent tracers fast blue and diamidino yellow. Exp. Brain Res. 66: 449-457, 1987.
    • (1987) Exp. Brain Res. , vol.66 , pp. 449-457
    • Robertson, D.1    Cole, K.S.2    Harvey, A.R.3
  • 36
    • 0028091426 scopus 로고
    • Protection from noise induced hearing loss by prior exposure to a nontraumatic stimulus: Role of the middle ear muscles
    • RYAN, A. F., BENNETT, T. M., WOOLF, N. K., AND AXELSSON, A. Protection from noise induced hearing loss by prior exposure to a nontraumatic stimulus: role of the middle ear muscles. Hear. Res. 72: 23-28, 1994.
    • (1994) Hear. Res. , vol.72 , pp. 23-28
    • Ryan, A.F.1    Bennett, T.M.2    Woolf, N.K.3    Axelsson, A.4
  • 37
    • 0021523357 scopus 로고
    • Acoustic injury and the physiology of hearing
    • SCHMIEDT, R. A. Acoustic injury and the physiology of hearing. J. Acoust. Soc. Am. 76: 1293-1317, 1984.
    • (1984) J. Acoust. Soc. Am. , vol.76 , pp. 1293-1317
    • Schmiedt, R.A.1
  • 39
    • 0001436828 scopus 로고
    • Innervation pattern of the cochlea: The internal hair cell
    • SMITH, C. A. Innervation pattern of the cochlea: the internal hair cell. Ann. Otol. Rhinol. Laryngol. 70: 504-527, 1961.
    • (1961) Ann. Otol. Rhinol. Laryngol. , vol.70 , pp. 504-527
    • Smith, C.A.1
  • 40
    • 0000392960 scopus 로고
    • Recent observations on the olivocochlear bundle
    • SMITH, C. A. AND RASMUSSEN, G. L. Recent observations on the olivocochlear bundle. Ann. Otol. Rhinol. Laryngol. 72: 489-497, 1963.
    • (1963) Ann. Otol. Rhinol. Laryngol. , vol.72 , pp. 489-497
    • Smith, C.A.1    Rasmussen, G.L.2
  • 41
    • 0031015727 scopus 로고    scopus 로고
    • Unique postsynaptic signaling at the hair cell efferent synapse permits calcium to evoke changes on two time scales
    • SRIDHAR, T. S., BROWN, M. C, AND SEWELL, W. F. Unique postsynaptic signaling at the hair cell efferent synapse permits calcium to evoke changes on two time scales. J. Neurosci. 17: 428-437, 1997.
    • (1997) J. Neurosci. , vol.17 , pp. 428-437
    • Sridhar, T.S.1    Brown, M.C.2    Sewell, W.F.3
  • 42
    • 0029014333 scopus 로고
    • A novel cholinergic "slow effect" of efferent stimulation on cochlear potentials in the guinea pig
    • RIDHAR, T. S., LIBERMAN, M. C., BROWN, M. C., AND SEWELL, W. F. A novel cholinergic "slow effect" of efferent stimulation on cochlear potentials in the guinea pig. J. Neurosci. 15: 3667-3678, 1995.
    • (1995) J. Neurosci. , vol.15 , pp. 3667-3678
    • Ridhar, T.S.1    Liberman, M.C.2    Brown, M.C.3    Sewell, W.F.4
  • 43
    • 0026005335 scopus 로고
    • Development of resistance to hearing loss from high frequency noise
    • SUBRAMANIAM, M., CAMPO, P., AND HENDERSON, D. Development of resistance to hearing loss from high frequency noise. Hear. Res. 56: 65-68, 1991a.
    • (1991) Hear. Res. , vol.56 , pp. 65-68
    • Subramaniam, M.1    Campo, P.2    Henderson, D.3
  • 44
    • 0026021391 scopus 로고
    • The effect of exposure level on the development of progressive resistance to noise
    • SUBRAMANIAM, M., CAMPO, P., AND HENDERSON, D. The effect of exposure level on the development of progressive resistance to noise. Hear. Res. 52: 181-188, 1991b.
    • (1991) Hear. Res. , vol.52 , pp. 181-188
    • Subramaniam, M.1    Campo, P.2    Henderson, D.3
  • 45
    • 0002406398 scopus 로고    scopus 로고
    • "Toughening" of the mammalian auditory system: Spectral, temporal and intensity effects
    • edited by R. Salvi and D. Henderson. New York: Thieme Medical Publishers
    • SUBRAMANIAM, M., HENDERSON, D., AND HENSELMAN, L. "Toughening" of the mammalian auditory system: spectral, temporal and intensity effects. In: Auditory System Plasticity and Regeneration, edited by R. Salvi and D. Henderson. New York: Thieme Medical Publishers, 1996, p. 128-142.
    • (1996) Auditory System Plasticity and Regeneration , pp. 128-142
    • Subramaniam, M.1    Henderson, D.2    Henselman, L.3
  • 46
    • 0014634664 scopus 로고
    • The efferent olivocochlear bundle in the guinea pig cochlea
    • TERAYAMA, Y., YAMAMOTO, K., AND SAKAMOTO, T. The efferent olivocochlear bundle in the guinea pig cochlea. Ann. Otol. Rhinol. Laryngol. 78: 1254-1268, 1969.
    • (1969) Ann. Otol. Rhinol. Laryngol. , vol.78 , pp. 1254-1268
    • Terayama, Y.1    Yamamoto, K.2    Sakamoto, T.3
  • 47
    • 0014731471 scopus 로고
    • Behavioral investigation of some possible effects of sectioning the crossed olivocochlear bundle
    • TRAHIOTIS, C. AND ELLIOTT, D. N. Behavioral investigation of some possible effects of sectioning the crossed olivocochlear bundle. J. Acoust. Soc. Am. 47: 592-596, 1970.
    • (1970) J. Acoust. Soc. Am. , vol.47 , pp. 592-596
    • Trahiotis, C.1    Elliott, D.N.2
  • 48
    • 0030984374 scopus 로고    scopus 로고
    • Intracellular labeling of auditory nerve fibers in guinea pig: Central and peripheral projections
    • TSUJI, J. AND LIBERMAN, M. C. Intracellular labeling of auditory nerve fibers in guinea pig: central and peripheral projections. J. Comp. Neurol. 381: 188-202, 1997.
    • (1997) J. Comp. Neurol. , vol.381 , pp. 188-202
    • Tsuji, J.1    Liberman, M.C.2
  • 49
    • 0024552502 scopus 로고
    • Effects of contralateral sound on auditory-nerve responses. I. Contributions of cochlear efferents
    • WARREN, E. H., III AND LIBERMAN, M. C. Effects of contralateral sound on auditory-nerve responses. I. Contributions of cochlear efferents. Hear. Res. 37: 89-104, 1989.
    • (1989) Hear. Res. , vol.37 , pp. 89-104
    • Warren III, E.H.1    Liberman, M.C.2
  • 50
    • 0030989259 scopus 로고    scopus 로고
    • The influence of the cochlear efferent system on chronic acoustic trauma
    • ZHENG, X. Y., HENDERSON, D., Hu, B. H., DING, D. L., AND MCFADDEN, S. L. The influence of the cochlear efferent system on chronic acoustic trauma. Hear. Res. 107: 147-159, 1997a.
    • (1997) Hear. Res. , vol.107 , pp. 147-159
    • Zheng, X.Y.1    Henderson, D.2    Hu, B.H.3    Ding, D.L.4    Mcfadden, S.L.5
  • 51
    • 0031081801 scopus 로고    scopus 로고
    • The role of the cochlear efferent system in acquired resistance to noise-induced hearing loss
    • ZHENG, X. Y., HENDERSON, D., MCFADDEN, S. L., AND Hu, B. H. The role of the cochlear efferent system in acquired resistance to noise-induced hearing loss. Hear. Res. 104: 191-203, 1997b.
    • (1997) Hear. Res. , vol.104 , pp. 191-203
    • Zheng, X.Y.1    Henderson, D.2    Mcfadden, S.L.3    Hu, B.H.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.