So S, Wang TQ, Yu BE, Malvankar-Mehta MS. The Psychological Impact of the COVID-19 Pandemic on Frontline Healthcare Workers. A Systematic Review and a Meta-Analysis. Eur. J. Ment. Health [Internet]. 2023 Feb. 28 [cited 2025 Apr. 19];18, e0003, 1-22. Available from: https://ejmh.semmelweis.hu/index.php/ejmh/article/view/263