Gubergrits NB, Mozhyna TL, Bieliaieva NV. BEHIND THE SCENES OF A TUMOR: EXOCRINE PANCREATIC INSUFFICIENCY IN PANCREATIC CANCER OR UPPER GASTROINTESTINAL CANCER. BCP [Internet]. 25Oct.2025 [cited 24Jun.2026];69(4):10-4. Available from: https://vkp.org.ua/index.php/journal/article/view/340