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Leung, Dexter Y L; Iliev, Milko E; Chan, Poemen; Baig, Nafees; Chi, Stanley C C; Tham, Clement C Y; Lam, Dennis S C (2011). Pressure-cornea-vascular index (PCVI) for predicting disease progression in normal tension glaucoma. British journal of ophthalmology, 95(8), pp. 1106-10. London: BMJ Publishing Group 10.1136/bjo.2009.175992
