COVID-19 lockdown and fatal motor vehicle collisions due to speed-related traffic violations in Japan: a time-series studyArticle Published on 2021-02-012023-07-06 Journal: Injury prevention : journal of the International Society for Child and [Category] SARS, [키워드] Behaviour Mortality motor vehicle � occupant speed Time series [DOI] 10.1136/injuryprev-2020-043947