title: Proceedings: Use of an opto-isolator in the simultaneous recording of potential differences from two regions of the intestinal tract.
mesh_terms: D000818:Animals; D003106:Colon / Q000502:physiology; D004594:Electrophysiology / Q000295:instrumentation; D007422:Intestines / Q000502:physiology*; D007583:Jejunum / Q000502:physiology; D051381:Rats