Prevalence of mental health problems during the COVID-19 pandemic: A systematic review and meta-analysis.
J Affect Disord. 2021 Feb 15;281:91-98. doi: 10.1016/j.jad.2020.11.117. Epub 2020 Dec 3.
J Affect Disord. 2021.
PMID: 33310451
Free PMC article.