Systems and methods affect tightening of the pyloric sphincter and/or
serve to mediate or moderate receptive relaxation of muscles in the
stomach, to treat or mitigate various physiologic conditions, such as
obesity, biliary reflex, GERD, and/or Barrett's esophagus. The systems
and methods may be used as either a primary treatment modality, or
applied as a supplementary treatment before, during or after a primary
intervention.