title: Response.
authors.forename: Christopher I
authors.initials: CI
authors.lastname: Shaffrey
authors.forename: Justin S
authors.initials: JS
authors.lastname: Smith
mesh_terms: D000818:Animals; D002458:Cell Fractionation / Q000379:methods*; D002462:Cell Membrane / Q000648:ultrastructure*; D005260:Female; D006801:Humans; D008297:Male; D019964:Mood Disorders / Q000523:psychology*; D011542:Pseudarthrosis / Q000523:psychology* / Q000601:surgery*; D016103:Spinal Fractures / Q000523:psychology* / Q000601:surgery*; D013130:Spinal Stenosis / Q000523:psychology* / Q000601:surgery*