RT Journal Article SR Electronic T1 Erectile Dysfunction Alliance. JF Sexually Transmitted Infections JO Sex Transm Infect FD BMJ Publishing Group Ltd SP 306 OP 306 DO 10.1136/sti.74.4.306 VO 74 IS 4 A1 W W Dinsmore YR 1998 UL http://sti.bmj.com/content/74/4/306.1.abstract