1. KTO‐Special Welfare District of Varsinais‐Suomi Paimio Finland
2. Public Health Turku University Hospital, Clinical Research Centre and University of Turku, Turku University Turku Finland
3. Special Welfare District of Pirkanmaa, Tampere University Hospital Tampere Finland
4. Kanta‐Häme Central Hospital Hämeenlinna Finland
5. Neurology Päijät‐Häme Joint Municipal Authority Lahti Finland
6. PEDEGO, University of Oulu Oulu Finland
7. Clinical Genetics Turku University Hospital Turku Finland