J. C. Villalobos-Comas, E. E. Castillo-Támara, J. M. Montaño Lozada, and S. M. Cardona Moica, “Psychogenic non-epileptic seizures following COVID-19 vaccine: A report of two cases in Colombia”, Arch Neurocien, vol. 27, no. 4, Sep. 2022.