[1] Boston Univ, Sch Med, Boston, MA 02215 USA
[2] Boston Univ, Sch Publ Hlth, Boston, MA USA
[3] VA Boston Healthcare Syst, Boston, MA USA
[4] Augusta Univ, Med Coll Georgia, Populat Hlth Sci Dept, Hlth Econ & Modeling Div, Augusta, GA USA
[5] Uniformed Serv Univ Hlth Sci, Grad Sch Nursing, Bethesda, MD USA
[6] Miami VA Healthcare Syst, Miami, FL USA
[7] Nova Southeastern Univ, Dr Kiran C Patel Coll Osteopath Med, Inst Neuroimmune Med, Ft Lauderdale, FL 33314 USA
[8] Augusta Univ, Med Coll Georgia, Dept Populat Hlth Sci, Augusta, GA USA
[9] Charlie Norwood Vet Adm Med Ctr, Res Serv, Augusta, GA USA