Tasmurzayev, N. ., Amangeldy, B. ., Baglan, I. ., Baigarayeva, Z. ., & Konysbekova, A. . (2025). Wearable sensor-based analysis of heart rate variability as a biomarker for ischemic heart disease. International Journal of Innovative Research and Scientific Studies, 8(5), 1909–1925. https://doi.org/10.53894/ijirss.v8i5.9317