[1] Radboudumc, Dept Obstet & Gynaecol, Nijmegen, Netherlands
[2] Dept Pediat Urol, Nijmegen, Netherlands
[3] Dept Urol, Nijmegen, Netherlands
[4] Dept Hlth Evidence, Nijmegen, Netherlands
[5] Dept Pediat Endocrinol, Paris, France
[6] Med Univ Lodz, Dept Androl & Reprod Endocrinol, Lodz, Poland
[7] Dept Endocrinol & Metab Dis, Toulouse, France
[8] Vrije Univ Amsterdam Med Ctr, Amsterdam, Netherlands
[9] Dept Pediat, Toulouse, France
[10] Dept Pediat Endocrinol, Bochum, Germany
[11] Dept Pediat, Lubeck, Germany
[12] Radboudumc, Dept Pediat Endocrinol, Nijmegen, Netherlands