Doss D, Samuel Sundar, Anandhalakshmi S, Rekha K, and Akhil Antony K. “EFFECT OF SMOKING ON HEART RATE VARIABILITY IN NORMAL HEALTHY VOLUNTEERS”. Asian Journal of Pharmaceutical and Clinical Research 9, no. 4 (July 1, 2016): 230–234. Accessed May 18, 2024. https://journals.innovareacademics.in/index.php/ajpcr/article/view/12031.