Affiliation: | 1. Chelsea and Westminster Hospital, London, United Kingdom;2. Imperial College London, United Kingdom;3. Royal Brompton Hospital, London, United Kingdom;1. Academic Department of Obstetrics and Gynaecology, Chelsea and Westminster Hospital, London, United Kingdom;2. Clinical Lead for Adult Congenital Heart Disease, Royal Brompton Hospital, London SW3 6NP, United Kingdom;3. Royal Brompton Hospital, London, United Kingdom;4. Division of Women''s and Children, Chelsea and Westminster Hospital, 369 Fulham Road, London SW10 9NH, United Kingdom |