Kelemen, Anett, and M. Kornyicki, Agota. “Methodological Changes and the Lessons Learnt from the Health Communication Applied by a Health Promotion Office at the Beginning of the First Wave of COVID-19 Pandemic”. Health Promotion 63, no. 4 (December 29, 2022): 56-63. Accessed July 9, 2025. https://ojs.mtak.hu/index.php/egfejl/article/view/9247.