An Altered Thyroid Status Does Not Alter the Met-Enkephalin Plasma Concentration in Humans - Loviselli, A; Martellotta, M C; Velluzzi, F; Cambosu, M A; Mossa, P; Caradonna, A; Palermo, M; Fratta, W; Martino, E (Hormone and Metabolic Research, 1995)