Progression of duodenal neoplasia to advanced adenoma in patients with familial adenomatous polyposis oleh Hiroko Nakahira, Yoji Takeuchi, Yusaku Shimamoto, Shingo Ishiguro, Hiroshi Yunokizaki, Yasumasa Ezoe, Fumie Fujisawa, Ryu Ishihara, Tetsuji Takayama, Teruhiko Yoshida, Michihiro Mutoh, Hideki Ishikawa