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van Swinderen B, Shook DR, Ebert RH, Cherkasova VA, Johnson TE, Shmookler Reis RJ, Crowder CM.van Swinderen B, et al. Among authors: ebert rh.Proc Natl Acad Sci U S A. 1997 Jul 22;94(15):8232-7. doi: 10.1073/pnas.94.15.8232.Proc Natl Acad Sci U S A. 1997.PMID: 9223344Free PMC article.