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Fórmula Universal II de Barrett de 4ª generación para el cálculo de lentes intraoculares - FacoElche.com
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Performance of the Barrett Toric Calculator with and without measurements of posterior corneal curvature | Eye
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PDF) Comparison of Barrett Toric Calculations Using Measured and Predicted Posterior Corneal Astigmatism in Cataract Surgery Patients
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Alcon Launches Online Toric IOL Calculator | OphthalmologyWeb: The Ultimate Online Resource for Ophthalmologists
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