Anja Bisgaard Pinborg
The Fertility Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
Anna-Karina Aaris Henningsen
The Fertility Clinic, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark
Mika Gissler
THL National Institute for Health and Welfare, Helsinki, Finland
Aila Tiitinen
Department of Obstetrics and Gynaecology, University of Helsinki and Helsinki University Hospital, Helsinki, Finland
Signe Opdahl
Department of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway
Liv Bente Romundstad
Spiren Fertility Clinic, Trondheim, Norway
Centre for Fertility and Health, Norwegian Institute of Public Health, Oslo, Norway
Christina Bergh
Department of Obstetrics and Gynaecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden
Ulla-Britt Wennerholm
Department of Obstetrics and Gynaecology, Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Sahlgrenska University Hospital, Gothenburg, Sweden