[1] UNITED MED & DENT NEW JERSEY, SCH OSTEOPATH MED, DEPT PATHOL, CAMDEN, NJ USA
[2] UNIV PENN, SCH MED, DIV PEDIAT UROL, PHILADELPHIA, PA 19104 USA
[3] UNIV PENN, SCH MED, DEPT UROL, PHILADELPHIA, PA 19104 USA
[4] UNIV PENN, SCH MED, DEPT SURG, PHILADELPHIA, PA 19104 USA
[5] CHILDRENS HOSP PHILADELPHIA, PHILADELPHIA, PA USA
[6] KINDERSPITAL, BASEL, SWITZERLAND
[7] YESHIVA UNIV ALBERT EINSTEIN COLL MED, DIV PEDIAT UROL, BRONX, NY 10461 USA
[8] YESHIVA UNIV ALBERT EINSTEIN COLL MED, DIV SURG PATHOL, BRONX, NY 10461 USA
[9] MONTEFIORE MED CTR, BRONX, NY 10467 USA
[10] HARVARD UNIV, CHILDRENS HOSP, SCH MED, DEPT SURG, DIV UROL, BOSTON, MA 02115 USA
[11] MED COLL WISCONSIN, MILWAUKEE, WI 53226 USA
[12] UNIV TEXAS, DALLAS, TX 75230 USA
[13] SOUTHWESTERN UNIV, DALLAS, TX USA
[14] LETTERMAN ARMY MED CTR, UROL SERV, SAN FRANCISCO, CA 94129 USA
[15] LETTERMAN ARMY MED CTR, DEPT CLIN INVEST, SAN FRANCISCO, CA 94129 USA
[16] TEXAS TECH UNIV, HLTH SCI CTR, PATHOL, LUBBOCK, TX 79430 USA