%0 Journal Article %A Mary-Ann Fitzcharles %A Peter A. Ste-Marie %A John X. Pereira %T Fibromyalgia: evolving concepts over the past 2 decades %D 2013 %R 10.1503/cmaj.121414 %J Canadian Medical Association Journal %P E645-E651 %V 185 %N 13 %U https://www.cmaj.ca/content/cmaj/185/13/E645.full.pdf