Xiao, Z., X. Xie, W. Guo, Z. Luo, J. Liao, F. Wen, Q. Zhou, L. Han, and T. Zheng. “Examining the Incubation Period Distributions of COVID-19 on Chinese Patients With Different Travel Histories”. The Journal of Infection in Developing Countries, Vol. 14, no. 04, Apr. 2020, pp. 323-7, doi:10.3855/jidc.12718.