RT Journal Article SR Electronic T1 Lack of access to out-of-hours endoscopy: implications for trainees too JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 115 OP 115 DO 10.7861/clinmedicine.8-1-115a VO 8 IS 1 A1 Andrew RL Medford YR 2008 UL http://www.rcpjournals.org/content/8/1/115.2.abstract AB