Anshika Srivastava, et al. “Cigarette Smoking and Its Effect on Coagulation Profile, Hematological Parameters, and Oxygen Saturation in Healthy Blood Donor”. Asian Journal of Medical Sciences, vol. 15, no. 8, Aug. 2024, pp. 140-5, https://nepjol.info/index.php/AJMS/article/view/65345.