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Low DA, Baker JB, Koonce WC, Cunningham DD.Low DA, et al. Among authors: baker jb.Proc Natl Acad Sci U S A. 1981 Apr;78(4):2340-4. doi: 10.1073/pnas.78.4.2340.Proc Natl Acad Sci U S A. 1981.PMID: 7017731Free PMC article.
Low DA, Scott RW, Baker JB, Cunningham DD.Low DA, et al. Among authors: baker jb.Nature. 1982 Jul 29;298(5873):476-8. doi: 10.1038/298476a0.Nature. 1982.PMID: 7088192