Красильникова, Полина Леонидовна, et al. “ROLE OF ETIOLOGICAL FACTORS IN THE DEVELOPMENT OF CHRONIC GASTRITIS AND STOMACH CANCER IN RESIDENTS OF A LARGE INDUSTRIAL CENTER OF WESTERN SIBERIA”. Medicine in Kuzbass, vol. 18, no. 2, June 2019, pp. 70-75, https://mednauki.ru/index.php/MK/article/view/357.