For citations:

Nagaev A.I., Shergina E.A., Karpina N.L. The possibilities of a conventional 12-lead ECG for early diagnosis of myocardial electrical instability in pulmonary TB patients with concomitant diabetes mellitus or hypertension. Astrakhan medical journal. 2025;20(1):40-52. (In Russ.) https://doi.org/10.17021/1992-6499-2025-1-40-52