Methods treat a tissue region. In one arrangement, the methods deploy an electrode on a support structure in a tissue region at or near the cardia of the stomach. In one embodiment, the support structure has a proximal region and a distal region. The proximal region is enlarged in comparison to the distal...http://www.google.fr/patents/US20050107829?utm_source=gb-gplus-shareBrevet US20050107829 - Methods for treating the cardia of the stomach