RT Journal Article SR Electronic T1 Diagnosis and management of gastrointestinal causes of chest pain of uncertain origin JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 402 OP 405 DO 10.7861/clinmedicine.2-5-402 VO 2 IS 5 A1 John de Caestecker YR 2002 UL http://www.rcpjournals.org/content/2/5/402.abstract AB