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Nar, H., R. Huber, C W. Heizmann, B. Thöny, ja D. Bürgisser. Three-dimensional Structure of 6-pyruvoyl Tetrahydropterin Synthase, an Enzyme Involved in Tetrahydrobiopterin Biosynthesis. 1994.

Nar, H., et al. Three-dimensional Structure of 6-pyruvoyl Tetrahydropterin Synthase, an Enzyme Involved in Tetrahydrobiopterin Biosynthesis. 1994.