[1] Univ Minnesota, Sch Nursing, Minneapolis, MN 55455 USA
[2] United BioSource Corp Ctr Hlth Outcomes Res, Bethesda, MD USA
[3] Washington Univ, Div Urol Surg, St Louis, MO USA
[4] Univ Alabama Birmingham, Dept Vet Affairs, Educ & Clin Ctr, Birmingham, AL USA
[5] Phizer Inc, New York, NY USA
[6] Pfizer Inc, New York, NY USA