Efficacy of multivitamin support following bariatric surgery in patients with obesity: a prospective observational study oleh Alessio Basolo, Susanna Bechi Genzano, Jacopo Vitti, Guido Salvetti, Donatella Gilio, Giovanni Ceccarini, Giovanna Scartabelli, Chita Lippi, Rosario Bellini, Rudi Mancini, Simone D’Imporzano, Carlo Moretto, Valentina Angeli, Daniela Troiani, Paola Fierabracci, Roberta Jaccheri, Alba Calderone, Anello M. Poma, Luca Chiovato, Giorgio Saponati, Ferruccio Santini