RT Journal Article SR Electronic T1 Revalidation: a professional imperative JF British Journal of General Practice JO Br J Gen Pract FD British Journal of General Practice SP 476 OP 477 DO 10.3399/bjgp09X453486 VO 59 IS 564 A1 Martin Marshall YR 2009 UL http://bjgp.org/content/59/564/476.abstract AB