[1] Univ Munster, Dept Gen Pediat, Munster, Germany
[2] Univ Copenhagen, Dept Growth & Reprod, Hosp Rigshosp, Copenhagen, Denmark
[3] Univ Copenhagen, Int Ctr Res & Res Training Endocrine Disrupt Male, Rigshosp, Copenhagen, Denmark
[4] Univ Copenhagen, Dept Clin Med, Copenhagen, Denmark