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Measurement of brain wave activity (EEG), 2-12 hours

Measurement of brain wave activity (EEG), 2-12 hours with intermittent monitoring

Measurement of brain wave activity (EEG), 12-26 hours

Measurement of brain wave activity (EEG), 12-26 hours with intermittent monitoring

Measurement of brain wave activity with video (VEEG), 2-12 hours

Needle measurement of electrical activity in arm, leg, trunk or head muscles, limited study

Needle measurement of electrical activity in muscle, including jitter, blocking and/or fiber density

Needle measurement of electrical activity in trunk or head muscles

Continuous infusion of anesthetic agent and/or steroid into lower back and leg nerve (sciatic nerve) through catheter

Injection by continuous infusion of anesthetic agent into lower back nerve bundle