1. Electromyography of striated muscle of anal and urethral sphincters;Jesel,1973
2. EMG examination of the anal and urethral sphincters;Chantraine,1973
3. Laboratory aids in diagnosis of neuromuscular disease;Yount,1974
4. Electrodiagnosis of Neuromuscular Diseases;Goodgold,1977
5. Clinical Electromyography;Lanman,1977