The Adult Neurometabolic Rare Disease Reference Center (CRMR) in Paris is part of the G2M Rare Disease Healthcare Network within the Assistance Publique des Hôpitaux de Paris (AP-HP). The CRMR collaborates closely with the ICM Brain Institute and Sorbonne University for its research activities, and with the patient associations AMMI, ASDGlut1, and Xtraordinaire for the care of patients with inherited metabolic disorders.