Baker Gordon Syndrome Natural History Study

Inclusion Criteria: * Genetically confirmed diagnosis of Baker Gordon syndrome. * 0-99 years * Ability to send medical records and diagnostic test results. * Ability to complete tests and questionnaires. Exclusion Criteria: • The presence of another condition or co-morbidity unrelated to Baker Gordon syndrome, that affects neurodevelopment. In this study, the primary caregivers/LAR for each participant diagnosed Baker Gordon Syndrome will be also considered participants. Caregivers/LAR will have to meet the following inclusion criteria: * \>18 years. * Legal caregiver of the patient diagnosed with a Baker Gordon Syndrome. * Willingness to follow study procedures, as assessed by the research team. * Willingness to sign the consent form. * Ability to understand all the information regarding the study, as assessed by the research team. Caregivers/LAR Exclusion Criteria: • Less than 18 years old.