Risdiana N, Syahruramdhani S, Suwitno A. The Physical Fitness Level, Heart Rate, and Heart Rate Recovery among Adolescent Smokers and Non-smokers. Open Access Maced J Med Sci [Internet]. 2021 Mar. 1 [cited 2024 Apr. 19];9(T4):101-5. Available from: https://oamjms.eu/index.php/mjms/article/view/5805