U. C. Dhar, M. Begum, B. Sarker, and R. Ahmad, “Effect of Cigarette Smoking on Serum Homocysteine and Folic Acid Levels in Apparently Healthy Male Smokers: Effects of cigarette smoking on serum homocysteine and folic acid levels”, J. Med. Coll. Women Hosp., vol. 21, no. 2, pp. 83–90, Sep. 2025.