1. Freed ML, Freed L, Chatburn RL, Christian M: Electrical stimulation for swallowing disorders caused by stroke. Respiratory Care 46(5):466–471, 2001
2. Milazzo S, Ernst E, Lejeune S, Schmidt, K: Cochrane Database Syst Rev 2006 Apr 19;(2):CD005476 [review]
3. Ludlow C: Physiological effects of surface electrical stimulation vs. intramuscular stimulation on swallowing in chronic pharyngeal dysphagia. Presented at the Charleston Swallowing Conference, Charleston, SC, October 6, 2005