Juchniewicz, Hanna Agnieszka, and Anna Lubkowska. “Association Between Physical Activity Level and Ankle-Branchial Index in Patients With Risk Factors of Peripheral Arterial Disease”. Journal of Education, Health and Sport, vol. 9, no. 12, Dec. 2019, pp. 32-42, doi:10.12775/JEHS.2019.09.12.004.