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3. CEMAS Working Group (2001). A National Eye Institute Sponsored Workshop and Publication on The Classification of Eye Movement Abnormalities and Strabismus (CEMAS). In The National Eye Institute Publications (www.nei.nih.gov). National Institutes of Health, National Eye Institute: Bethesda, MD
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5. Congenital nystagmus waveforms and foveation strategy;Dell’Osso;Documenta Ophthalmologica,1975