P. D. Hai, L. L. Phuong, N. H. Tot, N. L. P. Anh, N. D. Tung, and N. H. Quan, “Guillain-Barré syndrome after COVID-19 vaccination: report of two cases from Vietnam”, J Infect Dev Ctries, vol. 16, no. 11, pp. 1703–1705, Nov. 2022.