Yang, Wei, Yixin Ma, Jieyu Wang, Yun Li, Yaxin Zhang, and Tong Zhang. “Fungal Pneumonia Manifesting As Cavitary Lesions in a Critically Ill Elderly Patient”. The Journal of Infection in Developing Countries 13, no. 12 (December 31, 2019): 1170-1173. Accessed January 20, 2020. https://jidc.org/index.php/journal/article/view/11265.