Author information Narendra Malhotra MD FICOG FICMCH Ian Donald Diploma Practicing Obstetrician & Gynaecologist, Special Interest in High-Risk Obstetrics, Ultrasound, Laparoscopy and Infertility, ART and Genetics, Malhotra Nursing and Maternity Home Pvt Ltd, Agra, Uttar Pradesh, India Nidhi Gupta MS FICMCH FICOG Post President AOGS Professor, Department of Obstetrics and Gynaecology, SN Medical College, Agra, Uttar Pradesh, India Kuldeep Singh MBBS FAUI FICMCH Consultant Ultrasonologist, Special Interest in Obstetric Sonology in Detailed Anomaly Scanning and Color Doppler for Management and Gynaecological Scanning, Dr Kuldeep's Ultrasound and Color Doppler Clinic, Kailash, New Delhi, India