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Standardized mortality ratio (SMR) (or Standardized incidence ratio [SIR]) for cancer in major cohort studies of radiation workers. (A) all cancer; (B) leukemia. The mean cumulative doses are represented on the x-axis and SMRs (or SIR) for cancer are represented on the y-axis. *Solid cancer only; †All cancer excluding leukemia; ‡Leukemia excluding CLL.
