Name Info Provider Link
subscription/membership/fee required Elsevier Science https://linkinghub.elsevier.com/retrieve/pii/S0002-9149(14)02270-X
Erectile Dysfunction free resource MedlinePlus Health Information https://medlineplus.gov/erectiledysfunction.html
subscription/membership/fee required ClinicalKey https://www.clinicalkey.com/content/playBy/pii?v=S0002-9149(14)02270-X