1 Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK.
2 School of Medicine and Population Health, University of Sheffield, Sheffield, UK.
3 Chief Consultant and FEMaLe (Finding Endometriosis using Machine Learning) Coordinator, Research Unit for General Practice and Department of Public Health, Aarhus University, Aarhus, Denmark.
4 Centre for Reproductive Health, Institute for Regeneration and Repair, University of Edinburgh, Edinburgh, UK.