title: Re: PDE5A Polymorphisms Influence on Sildenafil Treatment Success.
authors.forename: Allen D
authors.initials: AD
authors.lastname: Seftel
mesh_terms: D054706:Cyclic Nucleotide Phosphodiesterases, Type 5; D000068677:Sildenafil Citrate; D013450:Sulfones
chemical_list: D013450:Sulfones; D000068677:Sildenafil Citrate; D054706:Cyclic Nucleotide Phosphodiesterases, Type 5