Baigarayeva, Zhanel, Assiya Boltaboyeva, Mergul Kozhamberdiyeva, Gulmira Dikhanbayeva, and Gulshat Amirkhanova. 2025. “Environmental Factors and Their Influence on Heart Rate Variability for Cardiovascular Disease Risk Classification: A Machine Learning Approach”. International Journal of Innovative Research and Scientific Studies 8 (4):2365-76. https://doi.org/10.53894/ijirss.v8i4.8391.