1. Barts Thorax Centre, St. Bartholomew’s Hospital, Barts Health NHS Trust, West Smithfield, London EC1A 7BE, UK
2. Queens University Hospital Endometriosis Centre, Barking Havering and Redbridge University Hospitals NHS Trust, Romford RM7 0AD, UK
3. Advanced Laparoscopic Gynaecology, Barts Health NHS Trust, West Smithfield, London, UK