Hou WK, Lee TM, Liang L, Li TW, et al. Civil unrest, COVID-19 stressors, anxiety, and depression in the acute phase of
the pandemic: a population-based study in Hong Kong. Soc Psychiatry Psychiatr Epidemiol 2021 Feb 16. pii: 10.1007/s00127-021-02037.
PMID: 33590313