| Laboratory |
| Endokrinologikum Hamburg - Center for Hormonal and Metabolic Diseases, Prenatal, and Reproductive Medicine, Molecular Diagnostics - Hamburg, Germany |
| GeneDx - Gaithersburg, MD, USA |
| Praxis fuer Humangenetik Wien - Vienna, Austria |
| Royal Devon and Exeter Hospital, Department of Molecular Genetics - Exeter, Great Britain |
| Seattle Children's Hospital, Biochemical and Molecular Genetics Laboratories - Seattle, WA, USA |
