Local excision for ypT2 rectal cancer: much ado about something - Perez, Rodrigo O.; Habr Gama, Angelita; Proschurshim, Igor; Campos, Fabio Guilherme Caserta Maryssael; Kiss, Desiderio; Gama Rodrigues, Joaquim José; Cecconello, Ivan (Journal of Gastrointestinal Surgery, 2007)