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Leser EW, Asenjo JA.Leser EW, et al.Ann N Y Acad Sci. 1994 May 2;721:337-47. doi: 10.1111/j.1749-6632.1994.tb47406.x.Ann N Y Acad Sci. 1994.PMID: 8010683
Leser EW, Lienqueo ME, Asenjo JA.Leser EW, et al.Ann N Y Acad Sci. 1996 May 15;782:441-55. doi: 10.1111/j.1749-6632.1996.tb40582.x.Ann N Y Acad Sci. 1996.PMID: 8659915