Cryptorchidism concordance in monozygotic and dizygotic twin brothers, full brothers, and half-brothers Morten Søndergaard Jensen, M.D., Gunnar Toft, Ph.D., Ane Marie Thulstrup, Ph.D., Tine Brink Henriksen, Ph.D., Jørn Olsen, Ph.D., Kaare Christensen, D.M.Sc., Jens Peter Bonde, D.M.Sc. Fertility and Sterility Volume 93, Issue 1, Pages 124-129 (January 2010) DOI: 10.1016/j.fertnstert.2008.09.041 Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions
Figure 1 Establishing six groups of boy pairs in a study population of 1,024,500 Danish boys born 1973-2004. Fertility and Sterility 2010 93, 124-129DOI: (10.1016/j.fertnstert.2008.09.041) Copyright © 2010 American Society for Reproductive Medicine Terms and Conditions