Evaluation of Therapeutic Adherence Among Patients Followed in the Department of Hereditary Metabolic Diseases at Necker Hospital

Inclusion Criteria: * All patients followed in the Hereditary Metabolic Diseases department of Necker Hospital during their visit to the department for their usual care and having a specific daily oral medication treatment. * Children aged at least 7 years and adolescents/young adults * Holders of parental authority and children or adolescents or adults' patients informed and consenting to participate in the study Exclusion Criteria: * Metabolic disease without oral medication (intravenous treatments, amino acid mixtures, and dietary regimens are not evaluated). * Patient and parents not proficient in French. * Refusal by the patient's holders of parental authority or adult patient to participate in the study and/or refusal of the child/adolescent.