MRC Epidemiology Unit
Validity of a physical activity questionnaire in Shanghai.
Peters TM, Shu XO, Moore SC, Xiang YB, Yang G, Ekelund U, Liu DK, Tan YT, Ji BT, Schatzkin AS, Zheng W, Chow WH, Matthews CE, Leitzmann MF
Medicine and Science in Sports and Exercise. Apr 2010
(DOI : 10.1249/MSS.0b013e3181e1fcd5)
