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Kobe FH, Mulick JA, Rash TA, Martin J. Nonambulatory persons with profound mental retardation: physical, developmental and behavioural characteristics. Res Developmental Disabilities 1994(15); 413-23
Kobe FH, Mulick JA, Rash TA, Martin J. Nonambulatory persons with profound mental retardation: physical, developmental and behavioural characteristics. Res Developmental Disabilities 1994(15); 413-23