Yang, W., Y. Ma, J. Wang, Y. Li, Y. Zhang, and T. Zhang. “Fungal Pneumonia Manifesting As Cavitary Lesions in a Critically Ill Elderly Patient”. The Journal of Infection in Developing Countries, Vol. 13, no. 12, Dec. 2019, pp. 1170-3, doi:10.3855/jidc.11265.