title: Serial memory span thresholds of normal and mentally retarded children.
mesh_terms: D001244:Association; D001307:Auditory Perception; D002648:Child; D002657:Child Development; D005260:Female; D005793:Generalization, Psychological; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis*; D007361:Intelligence Tests; D008297:Male; D008570:Memory, Short-Term; D014796:Visual Perception