Which pervasive developmental disorder that occurs mostly in females involves language and social impairment, deceleration of head growth, and poor coordination after a period of normal development?

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The disorder described is Rett's disorder, which is a rare genetic disorder that predominantly affects females. It is characterized by a period of normal development followed by loss of language and social skills, repetitive hand movements, deceleration of head growth, and poor coordination. Asperger's disorder is another pervasive developmental disorder that involves social impairment, but language development is not typically affected. Childhood schizophrenia and childhood disintegrative disorder are both marked by significant impairments in multiple areas of functioning, but they do not typically involve the specific symptoms described in the question.

Which Pervasive Developmental Disorder That Occurs Mostly in Females Involves