RT Journal Article SR Electronic T1 Erectile dysfunction (April 2005) JF Cleveland Clinic Journal of Medicine JO Cleve Clin J Med FD Cleveland Clinic SP 639 OP 640 VO 72 IS 8 A1 Akpunonu, Basil E. A1 Mutgi, Anand B. YR 2005 UL http://www.ccjm.org/content/72/8/639.3.abstract AB