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Schutgens RB, Wanders RJ, Nijenhuis A, van den Hoek CM, Heymans HS, Schrakamp G, Bleeker-Wagemakers EM, Delleman JW, Schram AW, Tager JM, et al.Schutgens RB, et al. Among authors: heymans hs.Enzyme. 1987;38(1-4):161-76. doi: 10.1159/000469202.Enzyme. 1987.PMID: 3440444