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Azuara-Blanco A, Dua HS.Azuara-Blanco A, et al.Am J Ophthalmol. 1999 Apr;127(4):467-9. doi: 10.1016/s0002-9394(98)00359-6.Am J Ophthalmol. 1999.PMID: 10218707
King A, Azuara-Blanco A, Tuulonen A.King A, et al.BMJ. 2013 Jun 11;346:f3518. doi: 10.1136/bmj.f3518.BMJ. 2013.PMID: 23757737Review.No abstract available.