(English) How often do police document drug use in crash-involved drivers who used an impairing substance?
Brubacher
Elesawey, Ludwar, Sengupta, Babineau
Thigpen, Winters, Fischer, Therrien, Fuller, Gauvin, Whitehurst, Nelson
Teschke, Dennis, Reynolds, Winters, Harris
Pitt, Graff, Howard, Nettel-Aguirre, McCormack, Owens, Anderson, Rowe, Hagel
Moxley-Kelly, Ouimet, Marcantoni, Brown
Byrne, Dessau, Ma, Monster, Plonka, Rubin