RT Journal Article SR Electronic T1 European Working Time Directive (2) JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 521 OP 522 DO 10.7861/clinmedicine.10-5-521 VO 10 IS 5 A1 Philip Tucker A1 Simon Folkar YR 2010 UL http://www.rcpjournals.org/content/10/5/521.abstract