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2. Eye defects of mentally handicapped children;Bankes;British Medical Journal,1974
3. Refractive errors in institutionalized mentally retarded and emotionally disturbed children;Courtney;American Journal of Optom Arch Am Acad Optom,1971
4. Racial analysis of ocular defects in the schools of Hawaii;Crawford;Hawaii Medical Journal,1949
5. Ocular findings in developmentally handicapped children;Edwards;Journal of Pediatric Ophthalmology,1972