MULTI-TIERED ELECTROCARDIOGRAM NETWORK SYSTEM: APPLICATION IN A REGIONAL MEDICAL ASSOCIATION IN PR CHINA: Zhi-Hua Gong1, Ming-Ming Zhang2, Yao Qu3 and Qing Xia3. SEATROPH [Internet]. 2020 Oct. 26 [cited 2025 Oct. 6];51(5):785. Available from: https://journal.seameotropmednetwork.org/index.php/jtropmed/article/view/288