Laaksonen MA, Virtala E, Knekt P, Oja H, Härkänen T. SAS Macros for Calculation of Population Attributable Fraction in a Cohort Study Design. J. Stat. Soft. [Internet]. 2011 Jul. 25 [cited 2024 Nov. 21];43(7):1-25. Available from: https://www.jstatsoft.org/index.php/jss/article/view/v043i07