TY - BOOK AU - Posner, Mitchell C. AU - Vokes, E. E.;Weichselbaum, Ralph R. TI - Cancer of the upper gastrointestinal tract SN - 1550091018 : U1 - 616.99433 PY - 2002/// CY - Hamilton, Ont. ;;London PB - B C Decker KW - Gastrointestinal system N1 - One CD-ROM in pocket attached to inside front cover ER -