%0 Journal Article %T Strength of Association. Report 1. Graduations of Relative Risk %A Koterov, A.N. %A Ushenkova, L.N. %A Zubenkova, E.S. %A Vaynson, A.A. %A Kalinina, M.V. %A Biryukov, A.P. %K graduation of effect size, ordinal scales, relative risk, epidemiology %J Medical Radiology and radiation safety %D 2019 %N 64 %P 12 %I Federal Medical Biological Agency of Russia