Daily vitamin supplementation and hypovitaminosis after obesity surgery - Donadelli, Simara Paganini; Junqueira-Franco, Márcia Varella Morandi; Donadelli, Carlos Augusto de Mattos; Salgado Júnior, Wilson; Ceneviva, Reginaldo; Marchini, Julio Sergio; Santos, José Ernesto dos; Nonino, Carla Barbosa (Nutrition, 2012)