Lighting and marking policies are associated with reduced farm equipment-related crash rates: a policy analysis of nine Midwestern US states

Ramirez, M., Bedford, R., Wu, H., Harland, K., Cavanaugh, J., & Peek-Asa, C. Lighting and marking policies are associated with reduced farm equipment-related crash rates: a policy analysis of nine Midwestern US states. 73991499409922383112119470231179111115316934140415 9 621 - 626. 10.1136/oemed-2016-103672.