- Correspondence to Dr Giuseppe Lauria, 3rd Neurology Unit, Motor Neuron Diseases Centre, IRCCS Foundation, “Carlo Besta” Neurological Institute, Via Celoria, 11, Milan 20133, Italy;
- Received 17 December 2014
- Revised 11 March 2015
- Accepted 30 March 2015
- Published in print 1 November 2015.
- Published online 14 October 2015.
- Published first 17 April 2015.
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