title: Analysis of gastric electrical signals from surface electrodes using phaselock techniques: part 1--system design.
mesh_terms: D004566:Electrodes; D004582:Electronics, Medical / Q000295:instrumentation*; D004594:Electrophysiology / Q000295:instrumentation; D006801:Humans; D012867:Skin; D013270:Stomach / Q000502:physiology*