The study was authored by Dr Seema Singhal, Dr Saroj Rajan, Dr Kirti Garg, Dr Shahin Naz Jamali, Dr Abhishek Bose, Dr Jyoti Meena, Dr Rajesh Kumari, Dr Anju Singh, Dr Nilanchali Singh, Dr Neerja Bhatla and Dr Neena Malhotra from the Department of Obstetrics and Gynaecology, AIIMS, New Delhi. At the same time, Dr Pranay Tanwar is from the Department of Onco-Haematopathology, Dr B R Ambedkar Institute-Rotary Cancer Hospital, AIIMS, New Delhi, while Dr Neeraj Nischal and Dr Sanjay Ranjan are from the Department of Medicine, AIIMS, New Delhi. Dr Sandeep Mathur is from the Department of Pathology, AIIMS, while author Dr Aarthi S. Jayraj is from the Department of Gynaecologic Oncology, National Cancer Institute, Jhajjar, Haryana.