OZGUR, Berat Cem; GONENC, Faruk; YAZICIOGLU, Ahmet H. Sildenafil or Vardenafil Nonresponders’ Erectile Response to Tadalafil. Urology Journal, [S. l.], v. 6, n. 4, p. 267–271, 2009. DOI: 10.22037/uj.v6i4.502. Disponível em: https://journals.sbmu.ac.ir/urolj/index.php/uj/article/view/502. Acesso em: 8 jul. 2026.