1. Department of Palliative Care and Psycho-oncology, Tata Medical Centre, Kolkata, India;
2. MRC Clinical Trials Unit, Institute of Clinical Trials & Methodology, University College London, London, UK;
3. Department of Gynaecological Oncology, Tata Medical Centre, Kolkata, India;
4. UCL EGA Institute for Women’s Health, University College London, London, UK