Ly, S., T. Arashiro, V. Ieng, R. Tsuyuoka, A. Parry, P. Horwood, S. Heng, S. Hamid, K. Vandemaele, S. Chin, B. Sar, and Y. Arima. “Establishing Seasonal and Alert Influenza Thresholds in Cambodia Using the WHO Method: Implications for Effective Utilization of Influenza Surveillance in the Tropics and Subtropics”. Western Pacific Surveillance and Response, vol. 8, no. 1, Apr. 2017, doi:10.5365/wpsar.2017.8.1.002.