Protein and amino acid status before and after bariatric surgery: a 12-month folow-up study - Nicoletti, Carolina Ferreira; Junqueira-Franco, Marcia Varella Morandi; Santos, José Ernesto dos; Marchini, Julio Sergio; Salgado Júnior, Wilson; Nonino, Carla Barbosa (Surgery for Obesity and Related Diseases, 2013)