MRC Epidemiology Unit
Overestimation of physical activity level is associated with lower BMI: a cross-sectional analysis
Griffin SJ, Van Sluijs EM, Corder KL, Hardeman W, Sutton S, Watkinson C
International Journal of Behavioral Nutrition and Physical Activity. Sep 2010
(DOI : 10.1186/1479-5868-7-68)
