Source:http://linkedlifedata.com/resource/umls/id/C0004290
MSH: A form of electrophysiologic audiometry in which an analog computer is included in the circuit to average out ongoing or spontaneous brain wave activity. A characteristic pattern of response to a sound stimulus may then become evident. Evoked response audiometry is known also as electric response audiometry.,NCI: An auditory test utilizing the electrical activity of neural impulses to localize the exact site of a pathologic process that causes the hearing loss.