1 https://pubmed.ncbi.nlm.nih.gov/30648537/ 2 https://www.firerescue1.com/fire-products/vehicles/ambulances/articles/why-running-lights-and-sirens-is-dangerous-nHnR5EPEXd3SzfIt/ 3 https://www.ems1.com/ems-products/ambulance-safety/articles/team-driven-improvement-in-the-use-of- lights-and-sirens-6YcxOIe9akfbNZUn/ 4 https://ambulancevisibility.com/web_images/EMSAC%20Star%20-%20Lighting2%20-%20October%202011.pdf