Khasanjanova , F. O. «FEATURES OF THE CLINICAL COURSE AND ELECTROCARDIOGAPHY DATA OF CORONARY HEART DISEASE IN MEN IN YOUNG AND ELDERLY AGE». Евразийский журнал медицинских и естественных наук, т. 2, вып. 5, май 2022 г., сс. 227-33, https://in-academy.uz/index.php/EJMNS/article/view/1646.