Follow-up of Roux-en-Y gastric bypass patients at 5 or more years postoperatively - Pajecki, Denis; Dalcanalle, Lorença; Oliveira, Claudia Pinto Marques Souza de; Zilberstein, Bruno; Halpern, Alfredo; Garrido Junior, Arthur B.; Cecconello, Ivan (Obesity Surgery, 2007)