Safitri, E. A. ., Siagian, P. ., Sinaga, B. Y. M. . and Eyanoer, P. C. . (2022) “Vitamin C Supplementation Improves Pulmonary Tuberculosis Patients’ Sputum Conversion During Intensive Phase Category I Treatment in Medan”, Respiratory Science, 2(2), pp. 72-77. doi: 10.36497/respirsci.v2i2.30.