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Chun SY, Parkinson JS.Chun SY, et al. Among authors: parkinson js.Science. 1988 Jan 15;239(4837):276-8. doi: 10.1126/science.2447650.Science. 1988.PMID: 2447650
Liu JD, Parkinson JS.Liu JD, et al. Among authors: parkinson js.Proc Natl Acad Sci U S A. 1989 Nov;86(22):8703-7. doi: 10.1073/pnas.86.22.8703.Proc Natl Acad Sci U S A. 1989.PMID: 2682657Free PMC article.