RT Journal Article SR Electronic T1 Leiomyosarcoma of the stomach with 45-year survival JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP 1208 OP 1209 VO 107 IS 12 A1 G. D. Hart A1 M. L. Soots A1 S. Yoshida YR 1972 UL http://www.cmaj.ca/content/107/12/1208.abstract