RT Journal Article SR Electronic T1 Patient 3: 19-year-old man with acute knee pain and swelling and a 2-year history of recurrent similar symptoms JF British Journal of Sports Medicine JO Br J Sports Med FD BMJ Publishing Group Ltd and British Association of Sport and Exercise Medicine SP 950 OP 950 DO 10.1136/bjsm.2008.052670 VO 43 IS 12 YR 2009 UL http://bjsm.bmj.com/content/43/12/950.abstract AB