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Johnson CA, Keltner JL, Balestrery FG.Johnson CA, et al.Ophthalmology. 1979 Jul;86(7):1278-86. doi: 10.1016/s0161-6420(79)35399-4.Ophthalmology. 1979.PMID: 233860
Keltner JL, Johnson CA, Balestrery FG.Keltner JL, et al. Among authors: johnson ca.Arch Ophthalmol. 1979 Feb;97(2):260-72. doi: 10.1001/archopht.1979.01020010112003.Arch Ophthalmol. 1979.PMID: 399178Clinical Trial.No abstract available.
Johnson CA, Keltner JL, Balestrery FG.Johnson CA, et al.Arch Ophthalmol. 1979 Apr;97(4):684-9. doi: 10.1001/archopht.1979.01020010340011.Arch Ophthalmol. 1979.PMID: 426683
Johnson CA, Keltner JL, Krohn MA, Portney GL.Johnson CA, et al.Invest Ophthalmol Vis Sci. 1979 Dec;18(12):1252-63.Invest Ophthalmol Vis Sci. 1979.PMID: 511466
Johnson CA, Keltner JL, Balestrery F.Johnson CA, et al.Vision Res. 1978;18(9):1217-22. doi: 10.1016/0042-6989(78)90106-2.Vision Res. 1978.PMID: 716241No abstract available.
Casson EJ, Shapiro LR, Johnson CA.Casson EJ, et al. Among authors: johnson ca.Invest Ophthalmol Vis Sci. 1990 Nov;31(11):2459-63.Invest Ophthalmol Vis Sci. 1990.PMID: 2243009
Lewis RA, Vijayan N, Watson C, Keltner J, Johnson CA.Lewis RA, et al. Among authors: johnson ca.Ophthalmology. 1989 Mar;96(3):321-6. doi: 10.1016/s0161-6420(89)33069-7.Ophthalmology. 1989.PMID: 2710523