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Abe M, Harpel JG, Metz CN, Nunes I, Loskutoff DJ, Rifkin DB.Abe M, et al. Among authors: rifkin db.Anal Biochem. 1994 Feb 1;216(2):276-84. doi: 10.1006/abio.1994.1042.Anal Biochem. 1994.PMID: 8179182Free article.