Han-Na, Hong, S.-M. S. “Changes in Social Interaction Anxiety and Health-Related Quality of Life Among the Inpatients With Stroke in Long Term Care Hospital According to the COVID-19 Vaccination in Korea”. Annals of the Romanian Society for Cell Biology, vol. 25, no. 6, Aug. 2021, pp. 19463-71, http://annalsofrscb.ro/index.php/journal/article/view/9760.