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Volumn 91, Issue 7, 1996, Pages 1301-1308

Prevention of biliary stent clogging: A clinical review

Author keywords

[No Author keywords available]

Indexed keywords

AMOXICILLIN; ANTIBIOTIC AGENT; BILE SALT; CIPROFLOXACIN; DEOXYCHOLIC ACID; METRONIDAZOLE; NORFLOXACIN; QUINOLINE DERIVED ANTIINFECTIVE AGENT; TAUROCHOLIC ACID; URSODEOXYCHOLIC ACID;

EID: 0030037589     PISSN: 00029270     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Review
Times cited : (91)

References (59)
  • 1
    • 0023275778 scopus 로고
    • Randomized trial of endoscopic versus percutaneous stent insertion in malignant obstructive jaundice
    • Speer AG, Cotton PB, Russell RCG, et al. Randomized trial of endoscopic versus percutaneous stent insertion in malignant obstructive jaundice. Lancet 1987;ii:57-62.
    • (1987) Lancet , vol.2 , pp. 57-62
    • Speer, A.G.1    Cotton, P.B.2    Russell, R.C.G.3
  • 2
    • 0024261657 scopus 로고
    • Endoscopie biliary endoprosthesis in the palliation of malignant obstruction of the distal common bile duct: A randomized trial
    • Shepherd HA, Royle G, Ross APR, et al. Endoscopie biliary endoprosthesis in the palliation of malignant obstruction of the distal common bile duct: A randomized trial. Br J Surg 1988;75:1166-8.
    • (1988) Br J Surg , vol.75 , pp. 1166-1168
    • Shepherd, H.A.1    Royle, G.2    Ross, A.P.R.3
  • 3
    • 0024340832 scopus 로고
    • Randomized trial of endoscopie endoprosthesis versus operative bypass in malignant obstructive jaundice
    • Anderson JR, Sorensen SM, Kruse A, et al. Randomized trial of endoscopie endoprosthesis versus operative bypass in malignant obstructive jaundice. Gut 1989;30:1132-5.
    • (1989) Gut , vol.30 , pp. 1132-1135
    • Anderson, J.R.1    Sorensen, S.M.2    Kruse, A.3
  • 4
    • 0027947512 scopus 로고
    • Randomised trial of endoscopie stenting versus surgical bypass surgery in malignant low bile duct obstruction
    • Smith AD, Dowsett JF, Russell RCG, et al. Randomised trial of endoscopie stenting versus surgical bypass surgery in malignant low bile duct obstruction. Lancet 1994;344:1655-60.
    • (1994) Lancet , vol.344 , pp. 1655-1660
    • Smith, A.D.1    Dowsett, J.F.2    Russell, R.C.G.3
  • 5
    • 0028263163 scopus 로고
    • Symptom relief and quality of life after stealing for malignant bile duct obstruction
    • Ballinger AB, McHugh M, Catnach SM, et al. Symptom relief and quality of life after stealing for malignant bile duct obstruction. Gut 1994;35:467-70.
    • (1994) Gut , vol.35 , pp. 467-470
    • Ballinger, A.B.1    McHugh, M.2    Catnach, S.M.3
  • 6
    • 0027253466 scopus 로고
    • Endoscopie therapy for patients with a post-operative biliary leak
    • Foutch PG, Harlan JR, Hoefer M. Endoscopie therapy for patients with a post-operative biliary leak. Gastrointest Endosc 1993;39:416-21.
    • (1993) Gastrointest Endosc , vol.39 , pp. 416-421
    • Foutch, P.G.1    Harlan, J.R.2    Hoefer, M.3
  • 7
    • 0027267791 scopus 로고
    • Treatment of non-extractable common bile duct stones with combination ursodeoxycholic acid plus endoprostheses
    • Johnson GK, Geenen JE, Venu RP, et al. Treatment of non-extractable common bile duct stones with combination ursodeoxycholic acid plus endoprostheses. Gastrointest Endosc 1993;39:528-31.
    • (1993) Gastrointest Endosc , vol.39 , pp. 528-531
    • Johnson, G.K.1    Geenen, J.E.2    Venu, R.P.3
  • 9
    • 0027422494 scopus 로고
    • Endoscopic management of primary cholangitis: Review, and report of an open series
    • Gaing AA, Geders JM, Cohen SA, et al. Endoscopic management of primary cholangitis: Review, and report of an open series. Am J Gastroenterol 1993;88:2000-8.
    • (1993) Am J Gastroenterol , vol.88 , pp. 2000-2008
    • Gaing, A.A.1    Geders, J.M.2    Cohen, S.A.3
  • 10
    • 0027280706 scopus 로고
    • Optimal timing for stent replacement in malignant biliary tract obstruction
    • Frakes JT, Johanson JF, Stake JJ. Optimal timing for stent replacement in malignant biliary tract obstruction. Gastrointest Endosc 1993;39: 164-7.
    • (1993) Gastrointest Endosc , vol.39 , pp. 164-167
    • Frakes, J.T.1    Johanson, J.F.2    Stake, J.J.3
  • 11
    • 0026736695 scopus 로고
    • Comparison of 10 French gauge stent with 11.5 French gauge stent in patients with biliary tract diseases
    • Kadakia SC, Starnes E. Comparison of 10 French gauge stent with 11.5 French gauge stent in patients with biliary tract diseases. Gastrointest Endosc 1992;38:454-9.
    • (1992) Gastrointest Endosc , vol.38 , pp. 454-459
    • Kadakia, S.C.1    Starnes, E.2
  • 12
    • 0025940258 scopus 로고
    • Clogging and other complications of biliary endoprostheses
    • Dowidar N, Moesgaard F, Matzen P. Clogging and other complications of biliary endoprostheses. Scand J Gastroenterol 1991;26:1132-6.
    • (1991) Scand J Gastroenterol , vol.26 , pp. 1132-1136
    • Dowidar, N.1    Moesgaard, F.2    Matzen, P.3
  • 13
    • 0023694586 scopus 로고
    • Endoscopic management of malignant biliary obstruction: Stents of 10 French gauge are preferable to stents of 8 French gauge
    • Speer AG, Cotton P, MacRea KD. Endoscopic management of malignant biliary obstruction: Stents of 10 French gauge are preferable to stents of 8 French gauge. Gastrointest Endosc 1988;34:412-7.
    • (1988) Gastrointest Endosc , vol.34 , pp. 412-417
    • Speer, A.G.1    Cotton, P.2    MacRea, K.D.3
  • 14
    • 0028302532 scopus 로고
    • Omitting side holes in biliary stents does not improve drainage of the obstructed biliary system: A prospective randomized trial
    • Sung JY, Lai CW, Chung SCS. Omitting side holes in biliary stents does not improve drainage of the obstructed biliary system: A prospective randomized trial. Gastrointest Endosc 1994;40:321-5.
    • (1994) Gastrointest Endosc , vol.40 , pp. 321-325
    • Sung, J.Y.1    Lai, C.W.2    Chung, S.C.S.3
  • 15
    • 0027161730 scopus 로고
    • A prospective, randomized, controlled trial of metal stents for malignant obstruction of the common bile duct
    • Knyrim K, Wagner HJ, Pausch J, et al. A prospective, randomized, controlled trial of metal stents for malignant obstruction of the common bile duct. Endoscopy 1993;25:207-12.
    • (1993) Endoscopy , vol.25 , pp. 207-212
    • Knyrim, K.1    Wagner, H.J.2    Pausch, J.3
  • 16
    • 0027945956 scopus 로고
    • Prevention of biliary stent occlusion using cyclical antibiotics and ursodeoxycholic acid
    • Ghosh S, Palmer KR. Prevention of biliary stent occlusion using cyclical antibiotics and ursodeoxycholic acid. Gut 1994;35:1757-9.
    • (1994) Gut , vol.35 , pp. 1757-1759
    • Ghosh, S.1    Palmer, K.R.2
  • 17
    • 0026489489 scopus 로고
    • Randomised trial of self-expanding metal stents versus polyethylene stents for distal malignant biliary obstruction
    • Davids PHP, Groen AK, Rauws EAJ, et al. Randomised trial of self-expanding metal stents versus polyethylene stents for distal malignant biliary obstruction. Lancet 1992;340:1488-92.
    • (1992) Lancet , vol.340 , pp. 1488-1492
    • Davids, P.H.P.1    Groen, A.K.2    Rauws, E.A.J.3
  • 18
    • 0028124108 scopus 로고
    • Randomised trial of prevention of biliary stent occlusion by ursodeoxycholic acid plus norfloxacin
    • Barrioz T, Ingrand P, Besson B, et al. Randomised trial of prevention of biliary stent occlusion by ursodeoxycholic acid plus norfloxacin. Lancet 1994;344:581-2.
    • (1994) Lancet , vol.344 , pp. 581-582
    • Barrioz, T.1    Ingrand, P.2    Besson, B.3
  • 19
    • 0022253075 scopus 로고
    • Investigation on the incrustation and obstruction of bile duct endoprostheses
    • Wosiewitz U, Schrameyer B, Zimmermann E. Investigation on the incrustation and obstruction of bile duct endoprostheses. Acta Endoscopica 1985;15:395-402.
    • (1985) Acta Endoscopica , vol.15 , pp. 395-402
    • Wosiewitz, U.1    Schrameyer, B.2    Zimmermann, E.3
  • 20
    • 0023129625 scopus 로고
    • Characterization of the content of occluded biliary endoprostheses
    • Groen AK, Out T, Huibregtse K, et al. Characterization of the content of occluded biliary endoprostheses. Endoscopy 1987;19:57-9.
    • (1987) Endoscopy , vol.19 , pp. 57-59
    • Groen, A.K.1    Out, T.2    Huibregtse, K.3
  • 21
    • 0026332766 scopus 로고
    • Physicochemical and bacteriological analysis of the contents of occluded biliary endoprostheses
    • Moesch C, Sauterreau D, Cessot F, et al. Physicochemical and bacteriological analysis of the contents of occluded biliary endoprostheses. Hepatology 1991;14:1142-6.
    • (1991) Hepatology , vol.14 , pp. 1142-1146
    • Moesch, C.1    Sauterreau, D.2    Cessot, F.3
  • 22
    • 0024565424 scopus 로고
    • Occluded pancreatic endoprostheses: Analysis of the clogging material
    • Provansal-Cheylan M, Bernard JP, Mariani A, et al. Occluded pancreatic endoprostheses: Analysis of the clogging material. Endoscopy 1989;21:63-9.
    • (1989) Endoscopy , vol.21 , pp. 63-69
    • Provansal-Cheylan, M.1    Bernard, J.P.2    Mariani, A.3
  • 23
    • 0027456760 scopus 로고
    • Bacterial biofilm, brown pigment stone and blockage of biliary stents
    • Sung JY, Leung JWC, Shaffer EA, et al. Bacterial biofilm, brown pigment stone and blockage of biliary stents. J Gastroenterol Hepatol 1993;8:28-34.
    • (1993) J Gastroenterol Hepatol , vol.8 , pp. 28-34
    • Sung, J.Y.1    Leung, J.W.C.2    Shaffer, E.A.3
  • 24
  • 25
    • 0025996923 scopus 로고
    • Clogging of biliary endoprostheses. A morphologic and bacteriologic study
    • Dowidar N, Kolmos HJ, Lyon H, et al. Clogging of biliary endoprostheses. A morphologic and bacteriologic study. Scand J Gastroenterol 1991;26:1137-44.
    • (1991) Scand J Gastroenterol , vol.26 , pp. 1137-1144
    • Dowidar, N.1    Kolmos, H.J.2    Lyon, H.3
  • 26
    • 0023893363 scopus 로고
    • Biliary stent blockage with bacterial biofilm
    • Speer AG, Cotton PB, Rode J, et al. Biliary stent blockage with bacterial biofilm. Ann Intern Med 1988;108:546-53.
    • (1988) Ann Intern Med , vol.108 , pp. 546-553
    • Speer, A.G.1    Cotton, P.B.2    Rode, J.3
  • 27
    • 0023916704 scopus 로고
    • Optimal palliation of malignant bile duct obstruction: Experience with endoscopie 12 French prostheses
    • Siegel JH, Pullano W, Kodsi B, et al. Optimal palliation of malignant bile duct obstruction: Experience with endoscopie 12 French prostheses. Endoscopy 1988;20:137-41.
    • (1988) Endoscopy , vol.20 , pp. 137-141
    • Siegel, J.H.1    Pullano, W.2    Kodsi, B.3
  • 28
    • 17444411391 scopus 로고
    • A prospective randomised trial of 10 and 11.5 FG endoprostheses in malignant bile duct obstruction
    • Finnie IA, O'Toole PA, Rhodes JM, et al. A prospective randomised trial of 10 and 11.5 FG endoprostheses in malignant bile duct obstruction. Gut 1994;35(suppl):S50.
    • (1994) Gut , vol.35 , Issue.SUPPL.
    • Finnie, I.A.1    O'Toole, P.A.2    Rhodes, J.M.3
  • 29
    • 0000479290 scopus 로고
    • Multicenter, randomized trial of Wallstent biliary endoprosthesis versus plastic stents
    • abstract
    • Carr-Locke DL, Ball TJ, Connors PJ, et al. Multicenter, randomized trial of Wallstent biliary endoprosthesis versus plastic stents. Gastrointest Endosc 1993;39:310 (abstract).
    • (1993) Gastrointest Endosc , vol.39 , pp. 310
    • Carr-Locke, D.L.1    Ball, T.J.2    Connors, P.J.3
  • 30
    • 0027096641 scopus 로고
    • Metallic stents in benign biliary strictures: Three-year follow-up
    • Maccioni F, Rossi M, Salvatori FM, et al. Metallic stents in benign biliary strictures: Three-year follow-up. Cardiovasc Interven Radiol 1992;15:360-6.
    • (1992) Cardiovasc Interven Radiol , vol.15 , pp. 360-366
    • Maccioni, F.1    Rossi, M.2    Salvatori, F.M.3
  • 31
    • 0027241308 scopus 로고
    • Delivery catheter entrapment during deployment of expandable metal stents
    • Jowell PS, Cotton PB, Huibregtse K, et al. Delivery catheter entrapment during deployment of expandable metal stents. Gastrointest Endosc 1993;39:199-202.
    • (1993) Gastrointest Endosc , vol.39 , pp. 199-202
    • Jowell, P.S.1    Cotton, P.B.2    Huibregtse, K.3
  • 32
    • 0004732833 scopus 로고
    • Factors affecting biliary stent patency in patients with pancreatic cancer
    • abstract
    • Conn M, Speer AG, Cotton PB. Factors affecting biliary stent patency in patients with pancreatic cancer. Gastrointest Endosc 1989;35:162 (abstract).
    • (1989) Gastrointest Endosc , vol.35 , pp. 162
    • Conn, M.1    Speer, A.G.2    Cotton, P.B.3
  • 34
    • 0025734526 scopus 로고
    • Factors affecting the patency of stents in malignant biliary obstructive disease: Univariate and multivariate analysis
    • Matsuda Y, Shimakura K, Akamatsu T. Factors affecting the patency of stents in malignant biliary obstructive disease: Univariate and multivariate analysis. Am J Gastroenterol 1991;86:843-9.
    • (1991) Am J Gastroenterol , vol.86 , pp. 843-849
    • Matsuda, Y.1    Shimakura, K.2    Akamatsu, T.3
  • 35
    • 0025222037 scopus 로고
    • A new technique for replacing an obstructed biliary endoprosthesis
    • Soehendra N, Maydeo B, Eckman B, et al. A new technique for replacing an obstructed biliary endoprosthesis. Endoscopy 1990;22: 271-2.
    • (1990) Endoscopy , vol.22 , pp. 271-272
    • Soehendra, N.1    Maydeo, B.2    Eckman, B.3
  • 36
    • 0027491186 scopus 로고
    • Endoscopie stent exchange using a guide wire and mini-snare
    • Sherman S, Hawes RH, Uzer MF, et al. Endoscopie stent exchange using a guide wire and mini-snare. Gastrointest Endosc 1993;39: 794-9.
    • (1993) Gastrointest Endosc , vol.39 , pp. 794-799
    • Sherman, S.1    Hawes, R.H.2    Uzer, M.F.3
  • 38
    • 0024443870 scopus 로고
    • Interaction of biofilm bacteria with antibiotics in a novel in vitro chemostat system
    • Anwar H, van Biesen T, Dasgupta MK, et al. Interaction of biofilm bacteria with antibiotics in a novel in vitro chemostat system. Antimicrob Agents Chemother 1990;33:1824-6.
    • (1990) Antimicrob Agents Chemother , vol.33 , pp. 1824-1826
    • Anwar, H.1    Van Biesen, T.2    Dasgupta, M.K.3
  • 39
    • 4244166858 scopus 로고
    • Prophylactic antibiotic therapy in the prevention of stent blockage
    • abstract
    • Desta T, Libby E, Liu YL, et al. Prophylactic antibiotic therapy in the prevention of stent blockage. Gastroenterology 1995;108:A413 (abstract).
    • (1995) Gastroenterology , vol.108
    • Desta, T.1    Libby, E.2    Liu, Y.L.3
  • 40
    • 0344222691 scopus 로고
    • Early treatment with ciprofloxacin prevents adherence of biliary biofilm
    • abstract
    • Libby ED, Coimbre A, Leung JWC. Early treatment with ciprofloxacin prevents adherence of biliary biofilm. Gastrointest Endosc 1994;40: 409 (abstract).
    • (1994) Gastrointest Endosc , vol.40 , pp. 409
    • Libby, E.D.1    Coimbre, A.2    Leung, J.W.C.3
  • 42
    • 0000141464 scopus 로고
    • Ciprofloxacin prevents stent blockage in an animal model
    • abstract
    • Libby ED, Morck D, McKay S, et al. Ciprofloxacin prevents stent blockage in an animal model. Gastroenterology 1994;106:A346 (abstract).
    • (1994) Gastroenterology , vol.106
    • Libby, E.D.1    Morck, D.2    McKay, S.3
  • 43
    • 0024832257 scopus 로고
    • A placebo-controlled study on the efficacy of aspirin and doxycycline in preventing clogging of biliary endoprostheses
    • Smit JM, Out MMJ, Groen AK, et al. A placebo-controlled study on the efficacy of aspirin and doxycycline in preventing clogging of biliary endoprostheses. Gastrointest Endosc 1989;35:485-9.
    • (1989) Gastrointest Endosc , vol.35 , pp. 485-489
    • Smit, J.M.1    Out, M.M.J.2    Groen, A.K.3
  • 44
    • 0029081133 scopus 로고
    • Endoscopie stenting for palliation of malignant biliary obstruction
    • Sung JY, Chung SCS. Endoscopie stenting for palliation of malignant biliary obstruction. Dig Dis Sci 1995;40:1167-73.
    • (1995) Dig Dis Sci , vol.40 , pp. 1167-1173
    • Sung, J.Y.1    Chung, S.C.S.2
  • 45
    • 0004759308 scopus 로고
    • A comparison of biliary and pancreatic stent occlusion in antibiotic-coated vs. conventional stents
    • abstract
    • Browne S, Schmalz M, Geenen J, et al. A comparison of biliary and pancreatic stent occlusion in antibiotic-coated vs. conventional stents. Gastrointest Endosc 1990;36:206 (abstract).
    • (1990) Gastrointest Endosc , vol.36 , pp. 206
    • Browne, S.1    Schmalz, M.2    Geenen, J.3
  • 46
    • 0026634970 scopus 로고
    • Decreased bacterial adherence to silver-coated stent material: An in vitro study
    • Leung JWC, Lau GTG, Sung JY, et al. Decreased bacterial adherence to silver-coated stent material: An in vitro study. Gastrointest Endosc 1992;38:338-40.
    • (1992) Gastrointest Endosc , vol.38 , pp. 338-340
    • Leung, J.W.C.1    Lau, G.T.G.2    Sung, J.Y.3
  • 47
    • 0025160209 scopus 로고
    • Clogging of biliary endoprostheses: A new prospective
    • Coene PPLO, Groen AK, Cheng J, et al. Clogging of biliary endoprostheses: A new prospective. Gut 1990;31:913-7.
    • (1990) Gut , vol.31 , pp. 913-917
    • Coene, P.P.L.O.1    Groen, A.K.2    Cheng, J.3
  • 48
    • 0026599839 scopus 로고
    • Experimental clogging of biliary endoprostheses: Role of bacteria, endoprosthesis material, and design
    • Dowidar N, Kolmos HJ, Matzen P. Experimental clogging of biliary endoprostheses: Role of bacteria, endoprosthesis material, and design. Scand J Gastroenterol 1992;27:77-80.
    • (1992) Scand J Gastroenterol , vol.27 , pp. 77-80
    • Dowidar, N.1    Kolmos, H.J.2    Matzen, P.3
  • 49
    • 0022633573 scopus 로고
    • In vitro long-term perfusion of different materials for biliary endoprostheses
    • Lammer J, Stoffler G, Petek WW, et al. In vitro long-term perfusion of different materials for biliary endoprostheses. Invest Radiol 1986;21: 329-31.
    • (1986) Invest Radiol , vol.21 , pp. 329-331
    • Lammer, J.1    Stoffler, G.2    Petek, W.W.3
  • 50
    • 0027159575 scopus 로고
    • The role of polymeric surface smoothness of biliary stents in bacterial adherence, biofilm deposition, and stent occlusion
    • McAllister EW, Carey LC, Brady PG, et al. The role of polymeric surface smoothness of biliary stents in bacterial adherence, biofilm deposition, and stent occlusion. Gastrointest Endosc 1993;39:422-5.
    • (1993) Gastrointest Endosc , vol.39 , pp. 422-425
    • McAllister, E.W.1    Carey, L.C.2    Brady, P.G.3
  • 52
    • 0027249861 scopus 로고
    • Bacterial adherence to hydrophilic polymer-coated polyurethane stents
    • Jansen B, Goodman LB, Rutien D. Bacterial adherence to hydrophilic polymer-coated polyurethane stents. Gastrointest Endosc 1993;39:670-3.
    • (1993) Gastrointest Endosc , vol.39 , pp. 670-673
    • Jansen, B.1    Goodman, L.B.2    Rutien, D.3
  • 53
    • 0028332605 scopus 로고
    • Ultrasmooth plastic to prevent stent clogging
    • Libby ED, Leung JWC. Ultrasmooth plastic to prevent stent clogging. Gastrointest Endosc 1994;40:386.
    • (1994) Gastrointest Endosc , vol.40 , pp. 386
    • Libby, E.D.1    Leung, J.W.C.2
  • 55
    • 0028245596 scopus 로고
    • Prolonged patency with a new-design teflon biliary prosthesis
    • Seitz U, Vadeyar H, Soehendra N. Prolonged patency with a new-design teflon biliary prosthesis. Endoscopy 1994;26:478-82.
    • (1994) Endoscopy , vol.26 , pp. 478-482
    • Seitz, U.1    Vadeyar, H.2    Soehendra, N.3
  • 56
    • 0001592165 scopus 로고
    • Biliary stents occlude earlier if the distal tip is in the duodenum in dogs
    • abstract
    • Geoghegan JG, Branch MS, Costerton JW, et al. Biliary stents occlude earlier if the distal tip is in the duodenum in dogs. Gastrointest Endosc 1991;37:257 (abstract).
    • (1991) Gastrointest Endosc , vol.37 , pp. 257
    • Geoghegan, J.G.1    Branch, M.S.2    Costerton, J.W.3
  • 57
    • 0026776372 scopus 로고
    • Ascending infection of the biliary tract after surgical sphincterotomy and biliary stenting
    • Sung JY, Leung JWC, Shaffer EA, et al. Ascending infection of the biliary tract after surgical sphincterotomy and biliary stenting. J Gastroenterol Hepatol 1992;7:240-5.
    • (1992) J Gastroenterol Hepatol , vol.7 , pp. 240-245
    • Sung, J.Y.1    Leung, J.W.C.2    Shaffer, E.A.3
  • 58
    • 0008219181 scopus 로고
    • Retrieval tail offsets advantage of proximal stent placement
    • abstract
    • Libby ED, Morck D, McKay S, et al. Retrieval tail offsets advantage of proximal stent placement. Gastrointest Endosc 1994;40:410 (abstract).
    • (1994) Gastrointest Endosc , vol.40 , pp. 410
    • Libby, E.D.1    Morck, D.2    McKay, S.3
  • 59
    • 0027767692 scopus 로고
    • A new self-expandable and removable metal stent for biliary obstruction: A preliminary report
    • Goldin E, Beyar M, Safra T, et al. A new self-expandable and removable metal stent for biliary obstruction: A preliminary report. Endoscopy 1993;25:597-9.
    • (1993) Endoscopy , vol.25 , pp. 597-599
    • Goldin, E.1    Beyar, M.2    Safra, T.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.