RT Journal Article SR Electronic T1 Clinical guidelines… must be pertinent, brief, valid and accessible JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 515 OP 515 DO 10.7861/clinmedicine.1-6-515 VO 1 IS 6 A1 Stephen Barber YR 2001 UL http://www.rcpjournals.org/content/1/6/515.1.abstract AB