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Bu DF, Erlander MG, Hitz BC, Tillakaratne NJ, Kaufman DL, Wagner-McPherson CB, Evans GA, Tobin AJ.Bu DF, et al. Among authors: tobin aj.Proc Natl Acad Sci U S A. 1992 Mar 15;89(6):2115-9. doi: 10.1073/pnas.89.6.2115.Proc Natl Acad Sci U S A. 1992.PMID: 1549570Free PMC article.