| http://www.w3.org/ns/prov#value | - If the guidewire over which the catheter is advanced into the patient's vasculature does not have sensing electrodes on its distal extremity, it may be withdrawn when the catheter is in its desired position and a guidewire such as shown in FIG. 4 may be advanced through the inner lumen 95 of the catheter 91 and out the port 103 in the distal end of the catheter to a more distal position with the b
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