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Mittelman A, Chen ZJ, Yang H, Wong GY, Ferrone S.Mittelman A, et al. Among authors: ferrone s.Proc Natl Acad Sci U S A. 1992 Jan 15;89(2):466-70. doi: 10.1073/pnas.89.2.466.Proc Natl Acad Sci U S A. 1992.PMID: 1731316Free PMC article.Clinical Trial.