Body fat mass and macronutrient intake in relation to circulating soluble leptin receptor, free leptin index, adiponectin, and resistin concentrations in healthy humans. - Yannakoulia,M.; Yiannakouris,N.; Bluher,S.; Matalas,AL.; Klimis-Zacas,D.; Mantzoros,CS. (J Clin Endocrinol Metab, 2003)