1. Fromm B, Hundt G, Gerner HJ, Baer GA, Exner G, Botel U et al. Management of respiratory problems unique to high tetraplegia. Spinal Cord 1999; 37: 239–244.
2. Shneerson J . Methods of mechanical ventilation instead of implanted phrenic nerve stimulators, Implanted phrenic nerve stimulators for respiratory insufficiency. In: Baer GA, Frey H, Talonen PP (eds). Implanted Phrenic Nerve Stimulators for Respiratory Insufficiency. University of Tampere: Tampere, 1989, pp 77–84.
3. Duchenne GB . De l′electrisation localisee et de son application a la pathologie et la therapeutique par courants induits at par courants galavaniques interrompus et continus, 3rd edn. J.B.Bailliere et fils: Paris, 1872, pp 907–918.
4. Judson JP, Glenn WWL . Radio-frequency electrophrenic respiration. JAMA 1968; 203: 1033–1037.
5. Glenn WWL, Hogan JF, Loke JSO, Ciesielski TE, Phelps ML, Rowedder R . Ventilatory support by pacing of the conditioned diaphragm in quadriplegia. N Engl J Med 1984; 310: 1150–1155.