1. Oh Shin J. Nerve conduction techniques. In: Clinical Elec- tromyography: Ch 4, Nerve conduction studies. Baltimore, MD: University Park Press, 1984: 47–64.
2. Daube JR. EMG in motor neuron diseases. American Associ- ation of Electrodiagnostic Medicine (AAEE), Minimono- graph no. 18, AAEE, Rochester, MN, 1982.
3. Electrophysiologic Studies in the Diagnosis and Prognosis of Motor Neuron Diseases
4. Functional significance of upper and lower motor neuron impairment in amyotrophic lateral sclerosis