RELATIONSHIP BETWEEN CARDIAC AUTONOMIC NEUROPATHY AND HEART RATE VARIABILITY IN YOUNG PATIENTS WITH TYPE 1 DIABETES MELLITUS ArticleMedvedev D.D., Efimova V.P., Mahamat Y.K., Safarova A.F., Kobalava Z.HD.European Journal of Heart Failure. Vol. 19. 2017. P.. 119-120