[1] UNIV ARIZONA, COLL MED, DEPT PSYCHIAT, TUCSON, AZ 85724 USA
[2] BAYLOR COLL MED, HOUSTON, TX 77030 USA
[3] ST LUKES HOSP, HOUSTON, TX USA
[4] VET ADM MED CTR, HOUSTON, TX 77211 USA
[5] METROPOLITAN MED CTR, SAN ANTONIO, TX USA
[6] JOHNS HOPKINS UNIV HOSP, DEPT UROL, BALTIMORE, MD 21205 USA
[7] PENN HOSP, UROL SECT, PHILADELPHIA, PA 19107 USA