[1] Univ Bern, Inst Social & Prevent Med, Bern, Switzerland
[2] PCD Support UK, London, England
[3] PCD Fdn, Minneapolis, MN USA
[4] Sorbonne Univ, Hop St Antoine, AP HP, Endocrine & Reprod Med Unit, Paris, France
[5] Univ Paris Est, Intercommunal Hosp, Dept Obstet Gynecol & Reprod Med, Creteil, France
[6] Univ Paris Est Creteil, Fac Sante, INSERM, IMRB, Creteil, France