Value of percutaneous transhepatic cholangioscopy (PTCS). - Nimura, Yuji; Shionoya, Shigehiko; Hayakawa, Naokazu; Kamiya, Junichi; Kondo, Satoshi; Yasui, Akihiro; Nimura, Y; Shionoya, S; Hayakawa, N; Kamiya, J; Kondo, S; Yasui, A (Surgical Endoscopy, 1988)