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Zhou Q, Moore KL, Smith DF, Varki A, McEver RP, Cummings RD.Zhou Q, et al. Among authors: cummings rd.J Cell Biol. 1991 Oct;115(2):557-64. doi: 10.1083/jcb.115.2.557.J Cell Biol. 1991.PMID: 1717488Free PMC article.