1. Complete response of colorectal liver metastases after chemotherapy: does it mean cure?;Benoist;J Clin Oncol,2006
2. Outcome of posthepatectomy-missing colorectal liver metastases after complete response to chemotherapy: impact of adjuvant intra-arterial hepatic oxaliplatin;Elias;Ann Surg Oncol,2007
3. Operative versus nonoperative treatment for stage 0 distal rectal cancer following chemoradiation therapy: long-term results;Habr-Gama;Ann Surg.,2004
4. Avoiding radical surgery after pre-operative chemoradiotherapy: a possible therapeutic option in rectal cancer?;Hingorani;Acta Oncol,2012
5. Local Excision in Downstaged Rectal Cancer (GRECCAR-2). http://clinicaltrials.gov/show/NCT00427375 [Accessed on July 6th].