Altered plasma response to zinc and iron tolerance test after Roux-en-Y gastric bypass - Rosa, Flávia Troncon; Penaforte, Fernanda Rodrigues de Oliveira; Leme, Izabel de Arruda; Padovan, Gilberto João; Ceneviva, Reginaldo; Marchini, Julio Sergio (Surgery for Obesity and Related Diseases, 2011)