Participants who have not had an endovascular intervention in the 3 months before study entry will undergo a standard of care percutaneous transluminal angioplasty (PTA) procedure. First these, participants will complete a series of clinical review assessments that will include a review of social, vascular, and clinical history. Next, they will undergo the PTA procedure, which will involve the inflation and deflation of a small balloon in the area of the blocked artery. Additionally, participants may have a metal mesh tube called a stent placed in the blocked area, if deemed necessary by their physicians.