Practice Parameter Update: The Care of the Patient with Amyotrophic Lateral Sclerosis: Drug, Nutritional, and Respiratory Therapies (An Evidence-Based Review)
Neurol 73:1218-1226, Miller,R.G.,et al, 2009
Is Chronic Respiratory Failure in Neuromuscular Diseases Worth Treating
JNNP 61:1-3, Shneerson,J.M., 1996