Validity of self-assessed waist circumference in a multi-ethnic UK population.
Khunti K, Taub N, Webb D, Srinivasan B, Stockman J, Griffin SJ, Simmons RK, Davies MJ
Diabetic medicine : a journal of the British Diabetic Association. Oct 2011
(DOI : 10.1111/j.1464-5491.2011.03478.x)