| http://www.w3.org/ns/prov#value | - As described in connection with FIGS. 1A-1C, PTCA is a surgical procedure used for treating coronary artery disease wherein a balloon catheter 10 is inserted through an incision made in the groin or in an arm and is then advanced through the artery by means of a guide catheter and assisted by means of an x-ray sensitive dye.
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