Diurnal salivary cortisol is associated with body mass index and waist circumference: the Multiethnic Study of Atherosclerosis - Champaneri, S; Xu, X; Carnethon, M R; Bertoni, A G; Seeman, T; DeSantis, A S; Diez Roux, A; Shrager, S; Golden, S H (Obesity, 2013)