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Fong Y, Rosenbaum M, Tracey KJ, Raman G, Hesse DG, Matthews DE, Leibel RL, Gertner JM, Fischman DA, Lowry SF.Fong Y, et al.Proc Natl Acad Sci U S A. 1989 May;86(9):3371-4. doi: 10.1073/pnas.86.9.3371.Proc Natl Acad Sci U S A. 1989.PMID: 2497466Free PMC article.