Grigoryan, A., C. Clarke, L. Zueva, T. Chumachenko, E. F. Maes, and B. Smoak. “The Epidemiologic Vocabulary of the West and the Former Soviet Union: Different Sides of the Same Science”. Online Journal of Public Health Informatics, vol. 5, no. 1, Mar. 2013, doi:10.5210/ojphi.v5i1.4410.