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Zmuda JM, Cauley JA, Ljung BM, Bauer DC, Cummings SR, Kuller LH; Study of Osteoporotic Fractures Research Group.Zmuda JM, et al. Among authors: cummings sr.J Natl Cancer Inst. 2001 Jun 20;93(12):930-6. doi: 10.1093/jnci/93.12.930.J Natl Cancer Inst. 2001.PMID: 11416114