title: Are we finally on the right track in treating "difficult" erectile dysfunction patients?
authors: Vincenzo
authors: V
authors: Mirone
authors: Paolo
authors: P
authors: Verze
mesh_terms: D000818:Animals; D020536:Enzyme Activators / Q000494:pharmacology*; D007172:Erectile Dysfunction / Q000188:drug therapy*; D007093:Imidazoles / Q000494:pharmacology*; D008297:Male; D010413:Penis / Q000187:drug effects*; D058986:Phosphodiesterase 5 Inhibitors / Q000494:pharmacology*; D010879:Piperazines / Q000494:pharmacology*; D011720:Pyrazoles / Q000494:pharmacology*; D011743:Pyrimidines / Q000494:pharmacology*; D013450:Sulfones / Q000494:pharmacology; D014227:Triazines / Q000494:pharmacology; D000069058:Vardenafil Dihydrochloride
chemical_list: C569640:BAY 60-4552; D020536:Enzyme Activators; D007093:Imidazoles; D058986:Phosphodiesterase 5 Inhibitors; D010879:Piperazines; D011720:Pyrazoles; D011743:Pyrimidines; D013450:Sulfones; D014227:Triazines; D000069058:Vardenafil Dihydrochloride