TY - JOUR T1 - Pain in both knees JF - Canadian Medical Association Journal JO - CMAJ SP - 1227 LP - 1227 DO - 10.1503/cmaj.080104 VL - 179 IS - 11 AU - Wei-Jing Lee MD AU - Antonio Leo T TE MD AU - Yung-Ze Cheng MD Y1 - 2008/11/18 UR - http://www.cmaj.ca/content/179/11/1227.abstract ER -