Sildenafil in Treating Erectile Dysfunction in Patients With Prostate Cancer

CCOP - North Shore University Hospital, Manhasset

Bryn Mawr Hospital, Bryn Mawr

CCOP - MainLine Health, Wynnewood

Lankenau Cancer Center at Lankenau Hospital, Wynnewood

Albert Einstein Cancer Center, Philadelphia

Cancer Research UK Medical Oncology Unit at Churchill Hospital & Weatherall Institute of Molecular Medicine - Oxford, Salem

Cancer Treatment Center, Wooster

Community Memorial Hospital, Menomonee Falls

Medical College of Wisconsin Cancer Center, Milwaukee

Veterans Affairs Medical Center - Milwaukee (Zablocki), Milwaukee

Gundersen Lutheran Cancer Center at Gundersen Lutheran Medical Center, La Crosse

St. John's Regional Health Center, Springfield

Hulston Cancer Center at Cox Medical Center South, Springfield

LaFortune Cancer Center at St. John Medical Center, Tulsa

Natalie Warren Bryant Cancer Center at St. Francis Hospital, Tulsa

LDS Hospital, Salt Lake City

Washoe Cancer Services at Washoe Medical Center - Reno, Reno

Cancer Care Consultants Medical Associates at Daniel Freeman Memorial Hospital, Inglewood

John Muir/Mt. Diablo Comprehensive Cancer Center, Walnut Creek

Mount Diablo Regional Cancer Center, Concord

Cape Cod Hospital, Hyannis

University of Michigan Comprehensive Cancer Center, Ann Arbor

West Michigan Cancer Center, Kalamazoo

Norris Cotton Cancer Center at Dartmouth-Hitchcock Medical Center, Lebanon

Fox Chase Virtua Health Cancer Program - Marlton, Marlton

Community Regional Cancer Center at Community Medical Center, Toms River

Roswell Park Cancer Institute, Buffalo

Akron City Hospital, Akron

Paoli Memorial Hospital, Paoli

Naval Medical Center - Portsmouth, Portsmouth