1. Department of Clinical Genetics, Cardiovascular Institute, Erasmus Medical Center, University Medical Center, Rotterdam, the Netherlands (S.D., L.M.v.d.B., R.L., D.M.-K., H.T.B., I.M.B.H.v.d.L.).
2. European Reference Network ReCONNET, Ehlers Danlos Syndrome Working Group, Rotterdam, the Netherlands (S.D.).
3. Department of Human Genetics, Amsterdam University Medical Center, Vrije Universiteit Amsterdam, the Netherlands (J.B., S.I.M.A., M.J.H.B., S.N.v.d.C., F.L.K., E.O., A.M., A.C.H.).
4. Department of Human Genetics, Amsterdam University Medical Center, University of Amsterdam, the Netherlands (J.B., S.I.M.A., M.J.H.B., S.N.v.d.C., F.L.K., E.O., A.C.H.).
5. Department of Genetics, University Medical Center Utrecht, the Netherlands (A.F.B., N.A.A.G., P.J.v.T.).
6. Department of Human Genetics, Radboud University Nijmegen Medical Center, the Netherlands (O.B., M.J.E.K., B.L., C.W.O., M.V.).
7. Department of Genetics, University Medical Center Groningen, the Netherlands (E.D., E.O.).
8. Clinical Genetics, Maastricht University Medical Center, the Netherlands (A.T.J.M.H.-v.d.E.).
9. Department of Clinical Genetics, Leiden University Medical Center, the Netherlands (Y.H.-H.).
10. Department of Medical Biochemistry, Amsterdam University Medical Center, Amsterdam Cardiovascular Sciences, the Netherlands (V.d.W.).
11. European Reference Network for Rare Multisystemic Vascular Disease, Medium Sized Arteries Working Group, Rotterdam, the Netherlands (I.M.B.H.v.d.L.).