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Marshall GR, Hodgkin EE, Langs DA, Smith GD, Zabrocki J, Leplawy MT.Marshall GR, et al.Proc Natl Acad Sci U S A. 1990 Jan;87(1):487-91. doi: 10.1073/pnas.87.1.487.Proc Natl Acad Sci U S A. 1990.PMID: 2296604Free PMC article.
Smith GD, Zabrocki J, Flak TA, Marshall GR.Smith GD, et al. Among authors: marshall gr.Int J Pept Protein Res. 1991 Mar;37(3):191-7. doi: 10.1111/j.1399-3011.1991.tb00270.x.Int J Pept Protein Res. 1991.PMID: 1869370
Beusen DD, Zabrocki J, Slomczynska U, Head RD, Kao JL, Marshall GR.Beusen DD, et al. Among authors: marshall gr.Biopolymers. 1995 Aug;36(2):181-200. doi: 10.1002/bip.360360207.Biopolymers. 1995.PMID: 7492745