AU - Çay, Serkan TI - Design and Validation of a Custom-Made Electrocardiogram (ECG) Machine for Low-Cost, High-Fidelity Cardiac Monitoring PT - Journal Article DP - 2026 TA - Turk Kardiyol Dern Ars PG - - VI - 54 IP - AID - 10.5543/tkda.2026.57698 [doi] 4100 - https://dx.doi.org/10.5543/tkda.2026.57698 SO - Archives of the Turkish Society of Cardiology, 2026 54():