C. Olson, Associate Professor, Baylor Scott & White Health, Dallas, Texas, UNITED STATES|L. Bordeianou, Professor, Harvard Medical School, Boston, Massachusetts, UNITED STATES|C. Ratto, Associate Professor, Universita Cattolica del Sacro Cuore Facolta di Medicina e Chirurgia, Roma, Lazio, ITALY|L. Ferrari, Senior Fellow, Guy's and St Thomas' NHS Foundation Trust, London, London, UNITED KINGDOM|L.C. Oliveira, Coloproctologia Dra Lucia de Oliveira, Rio de Janeiro, Rio de Janeiro, BRAZIL|B. Gurland, Professor, Stanford University School of Medicine, Stanford, California, UNITED STATES|
