Determinants of exercise calf muscle perfusion in Peripheral Arterial Disease (PAD). Issue 1 (December 2016) - Gonzalez, Jorge; Li, Yan; Shaw, Peter; Kay, Jennifer; McKenzie, Robyn; Lopez, David; Sharma, Aditya; DiMaria, Joseph; Yang, Yang; Gina, Petroni; Salerno, Michael; Meyer, Craig; et al.