MALAS, O., and M.-D. TOLSÁ. “The COVID-19 Pandemic and the Obsessive-Compulsive Phenomena, in the General Population and Among OCD Patients: A Systematic Review”. European Journal of Mental Health, Oct. 2022, pp. 132-48, https://ejmh.semmelweis.hu/test/index.php/ejmh/article/view/249.