references for Lower Extremity PAD Quick Reference Guide

https://cpd.partners.org/sites/default/files/PVR_diagnostic_tests%5B1%5D.pdf

https://www.ahajournals.org/doi/pdf/10.1161/circulationaha.106.174526

https://pubmed.ncbi.nlm.nih.gov/27840332/

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4306002/

https://www.acc.org/latest-in-cardiology/ten-points-to-remember/2016/11/10/21/41/sunday-8am-2016-aha-acc-guideline-on-lepad-aha-2016

https://www.podiatrytoday.com/article/6952#:~:text=In%20general%2C%20a%20toe%20pressure,critical%20limb%20ischemia%20(CLI).

https://www.ahajournals.org/doi/pdf/10.1161/circulationaha.106.174526