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Schultz JS, Shreffler DC, Harvie NR.Schultz JS, et al.Proc Natl Acad Sci U S A. 1968 Nov;61(3):963-70. doi: 10.1073/pnas.61.3.963.Proc Natl Acad Sci U S A. 1968.PMID: 4972014Free PMC article.No abstract available.
Harvie NR, Schultz JS.Harvie NR, et al. Among authors: schultz js.Proc Natl Acad Sci U S A. 1970 May;66(1):99-103. doi: 10.1073/pnas.66.1.99.Proc Natl Acad Sci U S A. 1970.PMID: 4991520Free PMC article.