%0 Journal Article %T FEATURES OF PERFORATIVE GASTRODUODENAL ULCER IN CANCER PATIENTS %A Panin, S.. %A Kovalenko, N.. %A Postolov, M.. %A Suvorov, V.. %K perforative gastroduodenal ulcer, predictive model, cancer patients %J CASPIANJOURNALOF MEDICINE AND PHARMACY %D 2021 %N 2 %P 6 %I Astrakhan State Medical University