RT Journal Article SR Electronic T1 Submucosal tumour in a young girl JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 1040 OP 1040 DO 10.1136/gut.2008.160051 VO 58 IS 8 A1 Hayashi, N A1 Mima, K A1 Nagai, Y A1 Baba, Y A1 Imamura, Y A1 Hiyoshi, Y A1 Nakamura, T A1 Yoshida, N A1 Toyama, E A1 Miyanari, N A1 Watanabe, M A1 Baba, H YR 2009 UL http://gut.bmj.com/content/58/8/1040.abstract AB