American Journal of Epidemiology Advance Access published online on June 29, 2005
American Journal of Epidemiology, doi:10.1093/aje/kwi188
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1 American Journal of Epidemiology, Departments of Epidemiology and Biostatistics, Harvard School of Public Health, Boston, MA 02115
INVITED EDITORIAL NOTE
Easy SAS Calculations for Risk or Prevalence Ratios and Differences
2 Department of Epidemiology, Harvard School of Public Health, Boston, MA 02115
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