CHAUHAN, H.; KOTHIYA, J.; SAVSAVIYA, J. Three port versus four port laparoscopic cholecystectomy: a prospective comparative clinical study. International Surgery Journal, [S. l.], v. 7, n. 11, p. 3666–3669, 2020. DOI: 10.18203/2349-2902.isj20204669. Disponível em: https://www.ijsurgery.com/index.php/isj/article/view/6487. Acesso em: 20 feb. 2026.