RT Journal Article SR Electronic T1 Who's for five nine-hour shifts a week? JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 626 OP 626 DO 10.7861/clinmedicine.6-6-626 VO 6 IS 6 A1 Adam Feather YR 2006 UL http://www.rcpjournals.org/content/6/6/626.abstract AB