Mantzoros. FNDC5 and irisin in humans: I. Predictors of circulating concentrations in serum and plasma and II. mRNA expression and circulating concentrations in response to weight loss and exercise - Huh, J Y; Panagiotou, G; Mougios, V; Brinkoetter, M; Vamvini, M T; Schneider, B E (Metabolism, 2012)