Risk Factors for Abnormal Hemoglobin Levels in Online Motorcycle Taxi Drivers in the Tanjung Mas Industrial Area, Semarang City. Jar. Lab. Med. [Internet]. 2023 Dec. 11 [cited 2024 Nov. 23];5(2):104-9. Available from: https://journal.poltekkes-smg.net/index.php/jlm/article/view/119