RT Journal Article SR Electronic T1 Ethical approval for health research JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 325 OP 326 DO 10.7861/clinmedicine.1-4-325 VO 1 IS 4 A1 John H Tripp A1 Francis P Crawley A1 Olga Kubar A1 Martyn Evans A1 Eugenijus Gefenas YR 2001 UL http://www.rcpjournals.org/content/1/4/325.abstract AB