Transanal hemorrhoidal dearterialization: lessons learned from a personal series of 200 consecutive cases and a proposal for a tailor-made procedure - Sobrado, Carlos Walter; Hora, Jose Americo Bacchi; Sobrado, Lucas Faraco; Frugis, Marcos Onofre; Nahas, Sergio Carlos; Cecconello, Ivan (Annals of medicine and surgery, 2020)