Butler, M., Coebergh, J., Safavi, F., Carson, A., Hallett, M., Michael, B., Pollak, T., Solomon, T., Stone, J. & Nicholson, T. 2021, 'Functional Neurological Disorder After SARS-CoV-2 Vaccines: Two Case Reports and Discussion of Potential Public Health Implications', Journal of Neuropsychiatry and Clinical Neurosciences, 33(4). https://doi.org/10.1176/appi.neuropsych.21050116