TY - GEN AU - Kiernan,C TI - Early stages of communication development SN - 0300-9726 PY - 1988///0502 KW - Adolescent KW - Adult KW - Child KW - Child, Preschool KW - Communication Disorders KW - complications KW - Female KW - Humans KW - Intellectual Disability KW - Interpersonal Relations KW - Male KW - Time Factors KW - Verbal Behavior KW - Verbal Learning N1 - Publication Type: Journal Article ER -