Reactive Changes of Buccal Epitheliocytes and Erythrocytes in Students with Different Somatic Health and Cardiorespiratory Endurance Levels - Ihor Vypasniak; Sergii Popel; Bohdan Mytskan; Zınovii Ostapiak; Iryna Ivanyshyn (Montenegrin Sports Academy and Faculty for Sport and Physical Education, 2020)