Anagnou, N. P., O'Brien, S. J., Shimada, T., Nash, W. G., Chen, M. J., & Nienhuis, A. W. (1984). Chromosomal organization of the human dihydrofolate reductase genes: Dispersion, selective amplification, and a novel form of polymorphism.

Anagnou, N P., S J. O'Brien, T. Shimada, W G. Nash, M J. Chen, e A W. Nienhuis. Chromosomal Organization of the Human Dihydrofolate Reductase Genes: Dispersion, Selective Amplification, and a Novel Form of Polymorphism. 1984.

Anagnou, N P., et al. Chromosomal Organization of the Human Dihydrofolate Reductase Genes: Dispersion, Selective Amplification, and a Novel Form of Polymorphism. 1984.