Stap 1 van 2 50% What is your name?(Vereist) First Last What is your email address?(Vereist) Are you willing and able to participate with our Delphi study?(Vereist) Yes No Why not? I do not have the time I do not have the expertise I am not interested Other Please tell us why you are not able to participate Where are you primarily located?(Vereist) EU Great Brittan North Amerika South Amerika Africa Azia Oceania What is your primary sub-specialisation?(Vereist) Benigne gynaecology Obstetrics Fertility General gynaecology What I your main level of care?(Vereist) General hospital Private clinic University hospital Do you have a specialised outpatient office hour for niche related problems or are you a tertiary referral center?(Vereist) Yes No Niche consultations performed per year:(Vereist) 0-15 16-30 31-50 > 50 not applicable How many niche surgeries do you perform per year?(Vereist) 0-10 11-25 > 25 not applicable I give consent to collect and use my data, this data will be stored coded and destroyed after 15 years(Vereist) I agree