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Liley HG, White RT, Benson BJ, Ballard PL.Liley HG, et al. Among authors: ballard pl.Proc Natl Acad Sci U S A. 1988 Dec;85(23):9096-100. doi: 10.1073/pnas.85.23.9096.Proc Natl Acad Sci U S A. 1988.PMID: 3194412Free PMC article.
Sharma A, Gonzales LW, Ballard PL.Sharma A, et al. Among authors: ballard pl.Biochim Biophys Acta. 1993 Nov 3;1170(3):237-44. doi: 10.1016/0005-2760(93)90005-t.Biochim Biophys Acta. 1993.PMID: 8218341Free article.