PT - JOURNAL ARTICLE AU - Elizabeth Smyth AU - David Cunningham TI - Gastrointestinal oncology – what you need to know AID - 10.7861/clinmedicine.12-6-575 DP - 2012 Dec 01 TA - Clinical Medicine PG - 575--579 VI - 12 IP - 6 4099 - http://www.rcpjournals.org/content/12/6/575.short 4100 - http://www.rcpjournals.org/content/12/6/575.full SO - Clin Med2012 Dec 01; 12