“The State of Cancer Care in Russia: Gastric Cancer (C16). Prevalence, Data Registry Quality (Population Study)”. Voprosy onkologii 71, no. 6 (December 30, 2025): OF-2389. Accessed October 13, 2026. https://voprosyonkologii.ru/index.php/journal/article/view/6-25-The-State-of-Cancer-Care.