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Thomas JV, Simmons RJ, Belcher CD 3rd.Thomas JV, et al. Among authors: simmons rj.Ophthalmology. 1982 Mar;89(3):187-97. doi: 10.1016/s0161-6420(82)34807-1.Ophthalmology. 1982.PMID: 7088501
Savage JA, Thomas JV, Belcher CD 3rd, Simmons RJ.Savage JA, et al. Among authors: simmons rj.Ophthalmology. 1985 Nov;92(11):1506-16. doi: 10.1016/s0161-6420(85)33828-9.Ophthalmology. 1985.PMID: 4080323