[1] Chelsea & Westminster Hosp NHS Fdn Trust, Dept Acute Med, London, England
[2] UCL, EGA Inst Womens Hlth, London, England
[3] Tzaneio Gen Hosp, Dept Neurosurg, Piraeus, Greece
[4] Kettering Gen Hosp NHS Trust, Dept Acute Med, Kettering, Northants, England
[5] Natl & Kapodistrian Univ Athens, Sch Med, Athens, Greece
[6] Queen Mary Univ London, Barts & London Sch Med & Dent, Fac Med & Dent, London, England
[7] St James Inst Oncol, Dept Gynaecol Oncol, Leeds, W Yorkshire, England
[8] Mid Cheshire Hosp NHS Fdn Trust, Dept ENT Surg, Crewe, England
[9] Acibadem Mehmet Ali Aydinlar Univ, Ctr Adv Simulat & Educ, Istanbul, Turkey
[10] Aristotle Univ Thessaloniki, Sch Med, Special Unit Biomed Res & Educ, Thessaloniki, Greece