Laparoscopic total mesorectal excision for rectal cancer after neoadjuvant treatment: Targeting sphincter-preserving surgery - Araujo, Sergio Eduardo Alonso; Seid, Victor Edmond; Bertoncini, Alexandre; Campos, Fabio Guilherme; Sousa Jr., Afonso; Cecconello, Ivan (Hepato-gastroenterology, 2011)