1. Department of Medicine, Divisions of Geriatric Medicine and Gerontology, Hospital Internal Medicine, and Endocrinology, Robert and Arlene Kogod Center on Aging Mayo Clinic Rochester MN USA
2. Departement de Genetique Institut IMAGINE and Hôpital Necker‐Enfants Malades Paris France
3. Division of Endocrinology and Metabolism, UCSF Metabolic Bone Clinic, Institute for Human Genetics, Institute for Regeneration Medicine, and the Program for Craniofacial Biology University of California‐San Francisco San Francisco CA USA
4. Consultant Rheumatologist & Honorary Senior Lecturer in Metabolic Bone Disease The Royal National Orthopaedic Hospital Stanmore UK
5. Ipsen Newton MA USA
6. Departments of Orthopaedic Surgery and Medicine, and The Center for Research in FOP and Related Disorders, Perelman School of Medicine University of Pennsylvania Philadelphia PA USA