Shangguan, Y., Fang, H., Wang, S., Ji, Z., Shi, P., Feng, X., & Xu, K. (2020). Risk factors for negative T-SPOT.TB assay results in patients with confirmed active tuberculosis: A retrospective study. The Journal of Infection in Developing Countries, 14(11), 1288–1295. https://doi.org/10.3855/jidc.12063