Effects of Sildenafil, a Phosphodiesterase Type 5 Inhibitor, on the Primary Single Afferent Activity of the Rat Bladder. - AIZAWA, Naoki; ITO, Hiroki; SUGIYAMA, Rino; FUJIMURA, Tetsuya; FUKUHARA, Hiroshi; KUME, Haruki; HOMMA, Yukio; IGAWA, Yasuhiko (LUTS (1757-5664), 2017)