This specialty area includes electrotherapy/physical agents, electrophysiological evaluation (EMG/NCV), physical agents, and wound management. Souques and others treated patients with psychological therapy and early versions of electrotherapy. He received electrotherapy treatment and was declared medically unfit for service. The last manufacturer of violet ray electrotherapy devices in the US was Master Electric. Franklin briefly investigated electrotherapy, including the use of the electric bath. In 1996, Thomas Sandgaard founded Zynex Medical as a wholesaler of electrotherapy products. In some extreme cases electrotherapy was prescribed. In that year, he happened to witness a demonstration of a high-frequency d'Arsonval electrotherapy device. Roy discovers them and threatens Coral with electrotherapy to cure her perceived insanity. In Human Subjects By Electrotherapy" ". About 1750, first experiments in electrotherapy were made. There, from 1879 to 1893, he was in charge of electrotherapy. They are trained in Electrotherapy, and Hydrotherapy. Golding Bird at Guy's brought electrotherapy into the mainstream in the mid-19th century. Electrotherapy is the use of electrical energy as a medical treatment.