1. The Fertility Clinic, Skive Regional Hospital, Skive, Denmark
2. Faculty of Health, Aarhus University, Aarhus, Denmark
3. Global Biostatistics and Epidemiology, EMD Serono, Billerica, MA, USA, a business of Merck KGaA, Darmstadt, Germany
4. Global Clinical Development, EMD Serono Research and Development Institute, Billerica, MA, USA, a business of Merck KGaA, Darmstadt, Germany
5. Global Medical Affairs Fertility, Merck KGaA, Darmstadt, Germany