“QTc INTERVAL DURATION CLASS AND DRUG THERAPY OF PATIENCE IN A FIRST YEAR AFTER PACEMAKER IMPLANTATION”, J. V. N. Karazin Khark. Nat. Univ., Ser. Med., no. 32, pp. 5–11, Jan. 2017, doi: 10.26565/2227-6505-2016-32-01.