Bąk, Ewelina, and Jolanta Napierała. “The Risk of Increased Daytime Sleepiness and Obstructive Sleep Apnea Among the Group of Professional Drivers”. Journal of Education, Health and Sport, vol. 12, no. 8, Aug. 2022, pp. 625-43, doi:10.12775/JEHS.2022.12.08.065.