title: Hydrogel based in vivo reference electrode catheter.
mesh_terms: D000818:Animals; D002404:Catheterization / Q000295:instrumentation*; D004058:Diffusion; D004285:Dogs; D004553:Electric Conductivity; D004867:Equipment Design; D008839:Microelectrodes / Q000592:standards*; D011102:Polyhydroxyethyl Methacrylate; D011109:Polymethacrylic Acids; D012015:Reference Standards
chemical_list: D011109:Polymethacrylic Acids; D011102:Polyhydroxyethyl Methacrylate