TY JOUR TI ANEMIA AS A CURRENT PROBLEM IN A REGION WITH A DEVELOPED PETROCHEMICAL INDUSTRY KW anemia KW morbidity KW oncology KW blood transfusion KW erythropoiesis-stimulating drugs JO CASPIANJOURNALOF MEDICINE AND PHARMACY AU Valitova, E.F. AU Gazimov, A.K. AU Imel'guzina, G.F. AU Nasretdinova, L.M. PY 2022 IS 3 PB Astrakhan State Medical University