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Probst MR, Fan CM, Tessier-Lavigne M, Hankinson O.Probst MR, et al.J Biol Chem. 1997 Feb 14;272(7):4451-7. doi: 10.1074/jbc.272.7.4451.J Biol Chem. 1997.PMID: 9020169Free article.