RT Journal Article SR Electronic T1 Erectile impotence: Goal-Directed Treatment JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 354 OP 354 VO 59 IS 4 A1 Thomas F. Lue YR 1992 UL http://www.ccjm.org/content/59/4/354.1.abstract AB