. . . . . . . "[The association between intron 4 VNTR, E298A and IVF 23+10 G/T polymorphisms of ecNOS gene and sildenafil responsiveness in patients with erectile dysfunction.]. Sentence from MEDLINE/PubMed, a database of the U.S. National Library of Medicine."@en . . . . . "2017-02-21"^^ . . "Gene-disease associations inferred from text-mining the literature."@en . "DisGeNET evidence - LITERATURE"@en . "2017-10-17T13:15:02+02:00"^^ . . . . . . . . . . . "v5.0.0.0" . "v5.0.0" .