A case of incomplete duplication of the portal vein associated with multiple congenital anomalies oleh Tamaki Ichikawa, MD, PhD, Shunro Matsumoto, MD, PhD, Takakiyo Nomura, MD, PhD, Hiroshi Yamamuro, MD, PhD, Kota Tsuruya, MD, PhD, Tatehiro Kawaga, MD, PhD, Seiichiro Yamamoto, MD, PhD, Jun Hashimoto, MD, PhD