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Ritt JF.Ritt JF.Proc Natl Acad Sci U S A. 1946 Oct;32(10):255-8. doi: 10.1073/pnas.32.10.255.Proc Natl Acad Sci U S A. 1946.PMID: 16578216Free PMC article.No abstract available.
Ritt JF.Ritt JF.Proc Natl Acad Sci U S A. 1940 May 15;26(5):354-6. doi: 10.1073/pnas.26.5.354.Proc Natl Acad Sci U S A. 1940.PMID: 16577976Free PMC article.No abstract available.