1. Berardelli A, Inghilleri M, Formisano R, Accornero N, Manfredi M (1987) Stimulation of motor tracts in motor neuron disease. J Neurol Neurosurg Psychiatry 50: 732–737
2. Bernstein LP, Antel JP (1981) Motor neuron disease: decremental responses to repetitive nerve stimulation. Neurology 29: 627–631
3. Brooke MH, Florence JM, Heller LS et al. (1986) Controlled trial of thyrotropin-releasing hormone in amyotrophic lateral sclerosis. Neurology 36: 146–151
4. Buchthal F, Pirelli L (1953) Analysis of muscle action potentials as a diagnostic aid in neuromuscular disorders. Acta Med Scand 142 (Suppl 226): 315–327
5. Conrad B, Sindermann F, Prochazka VJ (1972) Interval analysis of repetitive denervation potentials of human skeletal muscle. J Neurol Neurosurg Psychiatry 35: 834–840