Alopecia-Intellectual Disability Syndrome 3, also known as alopecia-mental retardation syndrome 3, is related to alopecia-mental retardation syndrome and alopecia-intellectual disability syndrome 1. An important gene associated with Alopecia-Intellectual Disability Syndrome 3 is APMR3 (Alopecia-Mental Retardation Syndrome 3). Related phenotypes are intellectual disability, severe and alopecia universalis