References
- Bourke SC, Williams TL, Bullock RE et al. Non-invasive ventilation in motor neuron disease: current UK practice. Amyotroph Lateral Scler Other Motor Neuron Disord 2002; 3: 145–149.
- Bradley WG, Anderson F, Bromberg M et al. Current management of ALS: comparison of the ALS Care Database and the AAN Practice Parameter. The American Academy of Neurology. Neurology 2001; 57: 500–504.
- Weijer C, Shapiro SH, Glass KC. Clinical equipoise and not the uncertainty principle is the moral underpinning of the rando- mised controlled trial. British Medical Journal 2000; 321: 756–758.
- Bourke SC, Bullock RE, Williams RE et al. Non-invasive ventilation in ALS: indications and effect on quality of life. Neurology 2003; 61: 171–177.