1. Department of Medicine University of Cambridge Cambridge UK
2. Centro de Investigaciones Biológicas Margarita Salas Consejo Superior de Investigaciones Científicas (CSIC), and Centro de Investigación Biomédica en Red de Enfermedades Raras (CIBERER) Madrid Spain
3. Department of Systems Biology School of Medicine and Health Sciences University of Alcalá Madrid Spain
4. HHT Center Department of Pathology University of Utah Salt Lake City UT USA
5. Department of Clinical Genetics Sheffield Children’s Hospital Sheffield UK
6. Department of Respiratory Medicine Sheffield Children’s Hospital Sheffield UK
7. Department of Paediatric Congenital Heart Disease Leeds Children’s Hospital Leeds UK
8. NHS Lothian Molecular Genetics Service Western General Hospital Edinburgh UK
9. Department of Pediatrics Baylor College of Medicine and Texas Children’s Hospital Houston TX USA
10. ARUP Laboratories University of Utah School of Medicine Salt Lake City UT USA
11. Sheffield Pulmonary Vascular Disease Unit Royal Hallamshire Hospital Sheffield UK