Fibromyalgia patients have reduced hippocampal volume compared with healthy controls
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4321661/
http://www.ncbi.nlm.nih.gov/pubmed/25674013
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4321661/
http://www.ncbi.nlm.nih.gov/pubmed/25674013