THE FREQUENCY OF USE OF COMBINATIONS OF ANTIHYPERTENSIVE DRUGS IN PATIENTS WITH DIFFICULT-TO-CONTROL HYPERTENSION ON THE BACKGROUND OF BIOFEEDBACK AND PACED BREATHING AND HEART RATE VARIABILITY
The Journal of V.N. Karazin Kharkiv National University. Series "Medicine"/The Journal of  V.N. Karazin Kharkiv National University. Series "Medicine"