18. CLINICAL FEATURES AND ELECTROPHYSIOLOGY CHARACTERISTICS OF SUPRAVENTRICULAR TACHYCARDIA IN THE ELDERLY IN UNIVERSITY MEDICAL CENTER AT HO CHI MINH CITY. YHCĐ [Internet]. 2023 Apr. 24 [cited 2026 Sept. 8];64(3). Available from: https://tapchiyhcd.vn/index.php/yhcd/article/view/653