Wim C. J. Hop

A randomized, double-blind, placebo-controlled, cross-over study to assess the efficacy of tadalafil (Cialis) in the treatment of erectile dysfunction following three-dimensional conformal external-beam radiotherapy for prostatic carcinoma.

W. Hop, L. Incrocci, A. Slob, 2006, International journal of radiation oncology, biology, physics.