BorysenkoNatalia, Mykolayivna, Volodymyrivna BushuyevaInna, and Volodymyrivna BarjadzeRuslana. 2023. “MARKETING RESEARCH OF THE CURRENT STATE OF MEDICAL AID FOR STOMACH CANCER PATIENTS AND PHARMACOECONOMIC JUSTIFICATION OF THE PRINCIPLES OF ITS IMPROVEMENT”. European Science 3 (sge21-03):56-62. https://doi.org/10.30890/2709-2313.2023-21-03-002.