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Marsh-Tootle WL, Corliss DA, Alvarez SL, Clore KA, Daum KM, Gordon A, Houston G, Perry FF, Swanson MW.Marsh-Tootle WL, et al. Among authors: swanson mw.Optom Vis Sci. 1994 Oct;71(10):593-603. doi: 10.1097/00006324-199410000-00001.Optom Vis Sci. 1994.PMID: 7877802