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de Waard-Siebinga I, Creyghton WM, Kool J, Jager MJ.de Waard-Siebinga I, et al. Among authors: creyghton wm.Br J Ophthalmol. 1995 Sep;79(9):847-55. doi: 10.1136/bjo.79.9.847.Br J Ophthalmol. 1995.PMID: 7488605Free PMC article.