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Spicer EK, Horton R, Bloem L, Bach R, Williams KR, Guha A, Kraus J, Lin TC, Nemerson Y, Konigsberg WH.Spicer EK, et al. Among authors: konigsberg wh.Proc Natl Acad Sci U S A. 1987 Aug;84(15):5148-52. doi: 10.1073/pnas.84.15.5148.Proc Natl Acad Sci U S A. 1987.PMID: 3037536Free PMC article.