1. Communication disorders and use of intervention services among children aged 3-17 years: United States, 2012;Black;NCHS Data Brief,2015
2. A longitudinal study of the prevalence of voice disorders in children from a rural school division;Powell;J Commun Dis,1989
3. Clinical Management of Children’s Voice Disorders. United Kingdom;Hartnick,2010
4. Otorhinolaryngic findings in children with voice deviations;Senturia;Ann Otol Rhinol Laryngol,1968
5. Prevalence of voice disorders in Iranian primary school students;Mohammadzadeh;J Voice,2017