[1] Concuss Care Ctr Virginia & Tree Life, Glen Allen, VA 23060 USA
[2] Pinnacle Rehabil Inc, Richmond, VA USA
[3] Virginia Commonwealth Univ, Med Coll Virginia, Richmond, VA USA
[4] Univ Virginia, Charlottesville, VA USA
[5] Toronto Western Hosp, Comprehens Pain Program, Toronto, ON M5T 2S8, Canada