<unk>  is likely to be caused by a number of different various genetic factors. Each individual with MCDD is unique from one another and displays different symptoms. Various neuropsychological<unk> s can also be found in family members of people with MCDD.
Multiple complex developmental disorder
Autism spectrum
Zellweger spectrum disorders
Pervasive developmental disorder
High-functioning autism
Low-functioning autism
Personality development disorder
Childhood disintegrative disorder