Systems and methods treat {HEAD ~ a tissue region} at or near {TAIL ~ a sphincter} by deploying a carrier, which carries an electrode that can be advanced to penetrate tissue 
Systems and methods treat { HEAD ~ a tissue region } at or near { TAIL ~ a sphincter } by deploying a carrier , which carries an electrode that can be advanced to penetrate tissue
OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH