Role of nocturnal penile erection test on response to daily sildenafil in patients with erectile dysfunction due to pelvic fracture urethral disruption: a single-center experience.
Peng J, Zhang Z, Cui W, Yuan Y, Gao B, Song W, Xin Z.
Urology. 2014 Dec;84(6):1389-94. doi: 10.1016/j.urology.2014.08.006. Epub 2014 Oct 11.