PT - JOURNAL ARTICLE AU - A F A Merrison AU - M G Hanna TI - Muscle disease AID - 10.1136/jnnp.2008.167171 DP - 2009 Feb 01 TA - Practical Neurology PG - 54--65 VI - 9 IP - 1 4099 - http://pn.bmj.com/content/9/1/54.short 4100 - http://pn.bmj.com/content/9/1/54.full SO - Pract Neurol2009 Feb 01; 9