%0 Case Reports %T Mystery case: a 63-year-old man with progressive proximal pain and weakness. %A Scripko PD %A Amato AA %A Puig A %J Neurology %V 82 %N 4 %D Jan 2014 28 %M 24470605 %F 11.8 %R 10.1212/WNL.0000000000000052