Effect of Gastric Bypass on Spontaneous Growth Hormone and Ghrelin Release Profiles - Mancini, Marcio C.; Costa, Ana P. A. C.; Melo, Maria Edna de; Cercato, Cintia; Giannella-Neto, Daniel; Garrido Jr., Arthur B.; Rosberg, Sten; Albertsson-Wikland, Kerstin; Villares, Sandra M. F.; Halpern, Alfredo (Obesity Research, 2006)