| http://www.w3.org/ns/prov#value | - If during angiographic examination of the subject's coronary arteries it is determined that a coronary artery is blocked (partially or totally) by a thrombus, embolus, cholesterol plaque or other obstruction and that the blocked artery can be opened by PTCA, the practitioner can insert a balloon catheter percutaneously into a femoral vein of the subject and guide the catheter into the blocked coro
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