[1]
Ilyas, M., Agussalim, A., Megawati, M., Massi, N., Djaharuddin, I., Bakri, S., As’ad, S., Arief, M., Bahar, B., Seweng, A. and Prihantono, P. 2019. Relationship between Vitamin D Level and Serum TNF-α Concentration on the Severity of Chronic Obstructive Pulmonary Disease: Vitamin D Level and Serum TNF-α related to the Severity of Chronic Obstructive Pulmonary Disease. Open Access Macedonian Journal of Medical Sciences. 7, 14 (Jul. 2019), 2298–2304. DOI:https://doi.org/10.3889/oamjms.2019.663.