Article Title,Year,Volume,Issue,Page Range,Author Cytotoxic effect of exogenous cytochrome C adsorbed on montmorillonite colloid particles on colon cancer cell culture,2019,72,2,198-203,Hristova Assessment of the subjectively perceived cognitive deficit in hospitalized elderly patients with depression and the relationship of perceived deficit questionnaire - PDQ-D5 with the socio-demographic and clinical factors,2023,76,2,292-301,Stoyanova