AN IMMUNOHISTOCHEMICAL STUDY OF COMBINED HEPATOCELLULAR AND CHOLANGIOCELLULAR CARCINOMA-ON THE SIGNIFICANCE OF MONOCLONAL ANTIBODY BER-EP4 - SUZUKI, Yasushi; NONAKA, Hiroko; HASEBE, Yukitake; NAKAZAKI, Haruhiro; TAKITA, Wataru; KOBAYASHI, Kazuo; OOSHIRO, Toru; TOKURA, Natsuki; WATANABE, Masashi; SHIMOJIMA, Yasuhiro (Nihon Rinsho Geka Gakkai Zasshi (Journal of Japan Surgical Association), 2000)