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Probst WC, Cropper EC, Heierhorst J, Hooper SL, Jaffe H, Vilim F, Beushausen S, Kupfermann I, Weiss KR.Probst WC, et al. Among authors: hooper sl.Proc Natl Acad Sci U S A. 1994 Aug 30;91(18):8487-91. doi: 10.1073/pnas.91.18.8487.Proc Natl Acad Sci U S A. 1994.PMID: 8078908Free PMC article.