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Southwick FS, Purich DL.Southwick FS, et al.Proc Natl Acad Sci U S A. 1994 May 24;91(11):5168-72. doi: 10.1073/pnas.91.11.5168.Proc Natl Acad Sci U S A. 1994.PMID: 8197202Free PMC article.
Zeile WL, Condit RC, Lewis JI, Purich DL, Southwick FS.Zeile WL, et al. Among authors: southwick fs.Proc Natl Acad Sci U S A. 1998 Nov 10;95(23):13917-22. doi: 10.1073/pnas.95.23.13917.Proc Natl Acad Sci U S A. 1998.PMID: 9811901Free PMC article.