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Mäepea O, Bill A.Mäepea O, et al. Among authors: bill a.Exp Eye Res. 1992 Jun;54(6):879-83. doi: 10.1016/0014-4835(92)90151-h.Exp Eye Res. 1992.PMID: 1521580
Samuelsson-Almén M, Nilsson SF, Mäepea O, Bill A.Samuelsson-Almén M, et al. Among authors: bill a.Exp Eye Res. 1991 Aug;53(2):253-60. doi: 10.1016/0014-4835(91)90081-o.Exp Eye Res. 1991.PMID: 1833216
Nilsson SF, Mäepea O, Samuelsson M, Bill A.Nilsson SF, et al. Among authors: bill a.Curr Eye Res. 1990 Sep;9(9):863-72. doi: 10.3109/02713689008999558.Curr Eye Res. 1990.PMID: 2245647
Nilsson SF, Samuelsson M, Bill A, Stjernschantz J.Nilsson SF, et al. Among authors: bill a.Exp Eye Res. 1989 May;48(5):707-16. doi: 10.1016/0014-4835(89)90011-0.Exp Eye Res. 1989.PMID: 2737263
Bill A, Mäepea O, Hamanaka T.Bill A, et al.Klin Monbl Augenheilkd. 1989 Nov;195(5):277-80. doi: 10.1055/s-2008-1050038.Klin Monbl Augenheilkd. 1989.PMID: 2689763Review.German.
Mäepea O, Bill A.Mäepea O, et al. Among authors: bill a.Exp Eye Res. 1989 Oct;49(4):645-63. doi: 10.1016/s0014-4835(89)80060-0.Exp Eye Res. 1989.PMID: 2806429