R. Moisés De Almeida Leite, R. Ricciardi, Massachusetts General Hospital, Boston, Massachusetts, UNITED STATES|S.E. Araujo, Albert Einstein Instituto Israelito de Ensino e Pesquisa, Sao Paulo, BRAZIL|A. Venancio, Faculdade de Medicina de Jundiai, Jundiai, SP, BRAZIL|H. Bossie, Intuitive Surgical Inc, Sunnyvale, California, UNITED STATES|B. Herrero, L.C. Barchi, Gastromed - Instituto Zilberstein, Sao PAulo, SP, BRAZIL|
