title: An improved constant current source for micro-iontophoretic drug application studies.
mesh_terms: D000669:Amplifiers, Electronic; D000818:Animals; D004581:Electronics / Q000295:instrumentation*; D007478:Iontophoresis; D009482:Neurophysiology / Q000295:instrumentation*; D011600:Psychopharmacology / Q000295:instrumentation*