RT Journal Article SR Electronic T1 Second-line drug therapy for osteoarthritis JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 110 OP 112 DO 10.7861/clinmedicine.1-2-110 VO 1 IS 2 A1 Kenneth D Brandt YR 2001 UL http://www.rcpjournals.org/content/1/2/110.abstract AB