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