Identifying and Managing Common Childhood Language and Speech Impairments
BMJ 350:h2318, Reilly, S.,et al, 2015
Unclear Speech:Recognition & Significance of Unintelligible Speech in Preschool Children
Pediatrics 82:447-452, Coplan,J.&Gleason,J.R., 1988
The Child Who is Slow to Talk
BMJ 285:671-672, Robinson,R.J., 1982