Tinh, P. T., Lan, P. T., Mahomed, P., & Nhu Nguyen, T. M. (2013). Epidemiological and clinical characteristics of patients who died from Influenza A(H1N1)pdm09 in Viet Nam. Western Pacific Surveillance and Response, 3(1). https://doi.org/10.5365/wpsar.2011.2.3.003