[1] Univ Hosp Southern Denmark, Hosp Southern Jutland, Dept Gynecol & Obstet, Aabenraa, Denmark
[2] Univ Southern Denmark, Dept Reg Hlth Res, Odense, Denmark
[3] Odense Univ Hosp, OPEN, Open Patient Data Explorat Network, Odense, Denmark
[4] Univ Hosp Southern Denmark, Danish Hosp Rheumat Dis, Sonderborg, Denmark
[5] Univ Hosp Southern Denmark, Hosp Southern Jutland, Aabenraa, Denmark
[6] Univ Hosp Southern Denmark, Lillebaelt Hosp, Vejle, Denmark
[7] Univ Hosp Southern Denmark, Lillebaelt Hosp, Dept Gynecol & Obstet, Kolding, Denmark
[8] Univ Hosp Southern Denmark, Dept Gynecol & Obstet, Aabenraa, Denmark
[9] Odense Univ Hosp, Dept Gynecol & Obstet, Odense, Denmark
[10] Univ Southern Denmark, Res Unit Gen Practice, Dept Publ Hlth, Odense, Denmark
[11] Odense Univ Hosp, OPEN Odense Patient Data Explorat Network, Odense, Denmark