1. Department of Obstetrics and Gynecology Erasmus MC University Medical Center Rotterdam The Netherlands
2. Department of Dermatology Sophia Children's Hospital‐Center of Pediatric Dermatology; Erasmus MC University Medical Center Rotterdam‐Sophia Children's Hospital Rotterdam The Netherlands
3. Department of Obstetrics and Gynecology Ikazia Hospital Rotterdam The Netherlands
4. Department of Pathology Erasmus MC University Medical Center Rotterdam Rotterdam The Netherlands
5. Dutch Nationwide Pathology Databank (PALGA) Houten The Netherlands
6. Research and Development Office (RDO) Erasmus MC University Medical Center Rotterdam The Netherlands