Published on in Vol 7 , No 7 (2018) :July

1 Department of Statistics, Harvard University, Cambridge, MA, United States
2 Department of Psychiatry and Addiction Center, University of Michigan, Ann Arbor, MI, United States
3 School of Public Health, University of Michigan, Ann Arbor, MI, United States
4 Department of Emergency Medicine, University of Michigan Medical School, Ann Arbor, MI, United States
5 Injury Prevention Center, University of Michigan, Ann Arbor, MI, United States
6 Institute for Social Research, University of Michigan, Ann Arbor, MI, United States
7 School of Information, University of Michigan, Ann Arbor, MI, United States