[1] Kaohsiung Vet Gen Hosp, Dept Surg, Kaohsiung 81346, Taiwan
[2] Sydney Ctr Sexual & Relationship Therapy, Sydney, NSW, Australia
[3] Ichikawa Gen Hosp, Tokyo Dent Coll, Dept Urol, Chiba, Japan
[4] Seoul Natl Univ, Coll Med, Dept Urol, Seoul, South Korea
[5] Peking Univ, Hosp 1, Dept Urol, Beijing 100871, Peoples R China
[6] Lilavati Hosp & Res Ctr, Mumbai, Maharashtra, India
[7] Udayana Univ, Dept Androl & Sexol, Bali, Indonesia
[8] Kwong Wah Hosp, Dept Surg, Kowloon, Hong Kong, Peoples R China
[9] Pfizer Inc, New York, NY USA