Published on in Vol 21, No 1 (2019): January
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/10674, first published
.

1 Department of Occupational and Public Health, Amsterdam Public Health Research Institute, VU University Medical Center, Amsterdam, The Netherlands
2 Department of Surgery, VU University Medical Center, Amsterdam, The Netherlands
3 Department of Gynecology, VU University Medical Center, Amsterdam, The Netherlands