Ano-rectal sphincter preservation following preoperative chemoradiation in cT3-4Nx rectal cancer: Influence of tumor distance and downstaging

1. Calvo Manuel, F.A.
2. Del Pie, R.C.
3. Espí, M.G.
4. Pérez, P.M.
5. Díaz González, J.A.
6. Lozano Barrinso, M.A.
7. Crespo, R.H.