RT Journal Article SR Electronic T1 Physical and psychological evaluation of 'non-organic' abdominal pain. JF Gut JO Gut FD BMJ Publishing Group Ltd and British Society of Gastroenterology SP 221 OP 229 DO 10.1136/gut.8.3.221 VO 8 IS 3 A1 Hill, O W A1 Blendis, L YR 1967 UL http://gut.bmj.com/content/8/3/221.abstract AB