AUTHOR=Du Li-Jie TITLE=An opinion: social workers serve vulnerable populations in various digital ways under the crisis of the COVID-19 pandemic JOURNAL=Frontiers in Psychiatry VOLUME=14 YEAR=2023 URL=https://www.frontiersin.org/journals/psychiatry/articles/10.3389/fpsyt.2023.1247769 DOI=10.3389/fpsyt.2023.1247769 ISSN=1664-0640