Hill, S., Perkins, M., von Eije, K. J., Benschop, K., Faria, N. R., Golubchik, T., Holmes, E., Kafetzopoulou, L., Lemey, P., Minn Mak, T., Ling Moi, M., Oude Munnink, B., Poon, L., Shepherd, J., Vaughan, T., & Volz, E. (2021). Genomic sequencing of SARS-CoV-2 : A guide to implementation for maximum impact on public health. World Health Organization