Andersen, P. M.; Borasio, G. D.; Dengler, R.; Hardiman, O.; Kollewe, K.; Leigh, P. N.; Pradat, P.-F.; Silani, V.; Tomik, B. & Group, E. A. L. S. C. W. (2007), 'Good practice in the management of amyotrophic lateral sclerosis: clinical guidelines. An evidence-based review with good practice points. EALSC Working Group.', Amyotroph Lateral Scler 8(4), 195--213.