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2. Department of Empowerment of Persons with Disabilities [homepage on the internet]Situation of Person with Disabilities September 2021. Department of Empowerment of Persons with Disabilities on line resource. [Cited November 22 2021].https://www.dep.go.th/images/uploads/files/situation_Sep64.pdf. Accessed August 19 2020.
3. Oral Health Status and Treatment Needs of Visual Impairment in Phitsanuloke, Thailand
4. Oral Health Status of the Visually Impaired Children – A South Indian Study