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Oberhammer FA, Pavelka M, Sharma S, Tiefenbacher R, Purchio AF, Bursch W, Schulte-Hermann R.Oberhammer FA, et al.Proc Natl Acad Sci U S A. 1992 Jun 15;89(12):5408-12. doi: 10.1073/pnas.89.12.5408.Proc Natl Acad Sci U S A. 1992.PMID: 1608949Free PMC article.