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Berkowitz BA, Penn JS.Berkowitz BA, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 1998 Apr;39(5):840-5.Invest Ophthalmol Vis Sci. 1998.PMID: 9538894
Berkowitz BA, Roberts R, Penn JS, Gradianu M.Berkowitz BA, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 2007 Oct;48(10):4733-40. doi: 10.1167/iovs.06-1516.Invest Ophthalmol Vis Sci. 2007.PMID: 17898298
Berkowitz BA, Lukaszew RA, Mullins CM, Penn JS.Berkowitz BA, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 1998 Feb;39(2):391-6.Invest Ophthalmol Vis Sci. 1998.PMID: 9477999
Berkowitz BA, Roberto KA, Penn JS.Berkowitz BA, et al. Among authors: penn js.Curr Eye Res. 1998 Feb;17(2):218-21. doi: 10.1076/ceyr.17.2.218.5604.Curr Eye Res. 1998.PMID: 9523102
Werdich XQ, Penn JS.Werdich XQ, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 2006 Nov;47(11):5047-56. doi: 10.1167/iovs.05-1343.Invest Ophthalmol Vis Sci. 2006.PMID: 17065526
Bretz CA, Savage S, Capozzi M, Penn JS.Bretz CA, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 2013 Oct 25;54(10):7020-7. doi: 10.1167/iovs.13-12183.Invest Ophthalmol Vis Sci. 2013.PMID: 24052639Free PMC article.
Penn JS, Rajaratnam VS, Collier RJ, Clark AF.Penn JS, et al.Invest Ophthalmol Vis Sci. 2001 Jan;42(1):283-90.Invest Ophthalmol Vis Sci. 2001.PMID: 11133880
Yanni SE, Barnett JM, Clark ML, Penn JS.Yanni SE, et al. Among authors: penn js.Invest Ophthalmol Vis Sci. 2009 Nov;50(11):5479-86. doi: 10.1167/iovs.09-3652. Epub 2009 Jun 3.Invest Ophthalmol Vis Sci. 2009.PMID: 19494202Free PMC article.
Penn JS, Rajaratnam VS.Penn JS, et al.Invest Ophthalmol Vis Sci. 2003 Dec;44(12):5423-9. doi: 10.1167/iovs.02-0804.Invest Ophthalmol Vis Sci. 2003.PMID: 14638747