About the Authors

Ida N. Damgaard

ind@rh.dk

Affiliation University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark

Tina K. Jensen

Affiliation University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark

The Nordic Cryptorchidism Study Group
Jørgen H. Petersen

Affiliations University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark, Department of Biostatistics, University of Copenhagen, Copenhagen, Denmark

Niels E. Skakkebæk

Affiliation University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark

Jorma Toppari

Affiliations University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark, Department of Physiology and Pediatrics, University of Turku, Turku, Finland

Katharina M. Main

Affiliation University Department of Growth and Reproduction, GR-5064 Rigshospitalet, Copenhagen, Denmark

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: TKJ The Nordic Cryptorchidism Study Group JHP NES JT KMM. Performed the experiments: IND The Nordic Cryptorchidism Study Group. Analyzed the data: IND TKJ JHP NES JT KMM. Contributed reagents/materials/analysis tools: IND TKJ The Nordic Cryptorchidism Study Group JHP NES JT KMM. Wrote the paper: IND TKJ JHP NES KMM.