Tsvetkova, L. A., and O. V. Cherchenko, “RETRACTED: IMPLEMENTATION OF BIG DATA TECHNOLOGIES IN THE HEALTHCARE SYSTEM: EVALUATION OF TECHNOLOGICAL AND COMMERCIAL PERSPECTIVES”, Мейнстрим, Economics of Science, 2/2 (2016), 138-50, https://ecna.owebs.ru/article/view/23039, accessed 7 Nov. 2026.