Kenneth C. Griffin Department of Economics, University of Chicago, Chicago, Illinois.
Department of Health Care Policy, Harvard Medical School, Boston, Massachusetts.
JAMA Netw Open. 2021 Sep 1;4(9):e2125388. doi: 10.1001/jamanetworkopen.2021.25388.
This cross-sectional study analyzes changes in mass shootings in the US during the COVID-19 pandemic.
这项横断面研究分析了 COVID-19 大流行期间美国大规模枪击事件的变化。