The Registry collects data through two sources. First, the Patient Portal (launched in July 2015) allows FOP patients and caregivers to enter information about their experiences living with FOP. Second, the Physician Portal (in development) will allow physicians to enter clinical data about patients under their care. The Registry will be capable of including data on specific marketed therapies under the direction and control of a sponsoring pharmaceutical company. Key identifiers will link the physician-reported data with the Patient Portal data.