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Groopman JE, Hammer SM, Sallan SE, Allan JD.Groopman JE, et al. Among authors: hammer sm.J Clin Oncol. 1986 Apr;4(4):540-3. doi: 10.1200/JCO.1986.4.4.540.J Clin Oncol. 1986.PMID: 3007685
Hammer SM, Gillis JM, Groopman JE, Rose RM.Hammer SM, et al.Proc Natl Acad Sci U S A. 1986 Nov;83(22):8734-8. doi: 10.1073/pnas.83.22.8734.Proc Natl Acad Sci U S A. 1986.PMID: 2430298Free PMC article.