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2. A doublemasked comparison of betaxolol vs. timolol in the treatment of open-angle glaucoma;Allen;Am J Ophthalmol,1986
3. Absorption of ocular timolol;Alvan;Clin Pharmacokin,1980
4. Controlled clinical evaluation of betaxolol (0.5%) ophthalmic solution intraocular pressure and adjunctive therapy;Allen,1986