[1] UNIV FLORIDA, SHANDS TEACHING HOSP, COLL MED, DEPT SURG, DIV UROL, GAINESVILLE, FL 32601 USA
[2] UNIV FLORIDA, COLL MED, DIV PEDIAT NEPHROL, GAINESVILLE, FL 32601 USA
[3] UNIV ALABAMA, SCH MED, DEPT SURG, DIV UROL, BIRMINGHAM, AL 35233 USA
[4] UNIV ALABAMA HOSP, DIV UROL, BIRMINGHAM, AL 35233 USA
[5] CHILDRENS HOSP, UROL SECT, BIRMINGHAM, AL USA
[6] VET ADM HOSP, UROL SECT, BIRMINGHAM, AL 35233 USA
[7] CHILDRENS HOSP MED CTR, DIV UROL, BOSTON, MA 02115 USA
[8] HARVARD UNIV, SCH MED, BOSTON, MA 02115 USA