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2. Orbital floor “blowout” fractures. Clinical management;Bixenman;Ariz Med,1981
3. Diagnosis of superior oblique palsy;Bixenman;J Clin Neuro-ophthalmol,1981
4. Congenital hereditary downbeat nystagmus;Bixenman;Can J Ophthalmol,1983
5. Vertical prisms. How to avoid them;Michaels;Surv Ophthalmol,1982