1. Department of Cardiology, Erasmus MC, Rotterdam, the Netherlands (I.M.v.H., J.W.R.-H.)
2. Department of Cardiology, Adult Congenital Heart Disease Unit, Queen Elizabeth Hospital, Birmingham, United Kingdom (S.A.T.)
3. Department of Cardiology, Faculty of Medicine, El Minya University Hospital, Minya, Egypt (N.T.)
4. Department of Cardiology, Kasr Al Ainy Hospital, Cairo University, Egypt (G.Y.)
5. Department of Cardiology, Banha University Hospital, Egypt (A.E.)
6. Department of Cardiology, Medical University of Vienna, Austria (H.G.)
7. Department of Cardiology, Alexandria University Students Hospital, Alexandria, Egypt (Y.E.R.)
8. Department of Cardiology, Bichat Hospital, AP-HP, DHU Fire and Paris Diderot University, France (B.I.)
9. Department of Obstetrics, Imperial College School of Medicine, Chelsea and Westminster Hospital, London, United Kingdom (M.R.J.)
10. Department of Cardiology, Norwich Medical School, University of East Anglia, Norwich, United Kingdom (R.H.)
11. Fellow of the ESC, Sophia Antipolis Cedex, Biot, France (J.W.R.-H.).