title: Tungsten microneedles: a simple method of production.
mesh_terms: D000200:Action Potentials; D000818:Animals; D004566:Electrodes; D004569:Electroencephalography / Q000295:instrumentation*; D008839:Microelectrodes; D009482:Neurophysiology / Q000295:instrumentation*; D051381:Rats; D013003:Somatosensory Cortex / Q000502:physiology; D014414:Tungsten
chemical_list: D014414:Tungsten