Rodzlan Hasani, W. S., Ganapathy, S. S., Zhuo Lin, C., Mat Rifin, H., Bahari, M. N., Ghazali, M. H., Lodz, N. A., Ramli, M. H. T., Ab Majid, N. L., Miaw Yn, J. L., Mohd Yusoff, M. F., Ahmad, N. A., Suleiman, A., Yusoff, A. F., Balan, V., & Ngadiman, S. (2021). Comorbidities and clinical features related to severe outcomes among COVID-19 cases in Selangor, Malaysia. Western Pacific Surveillance and Response, 12(1), 7. https://doi.org/10.5365/wpsar.2020.11.3.007