[1] Yale Sch Publ Hlth, Dept Chron Dis Epidemiol, New Haven, CT USA
[2] Univ Tennessee, Dept Publ Hlth, Knoxville, TN 37996 USA
[3] Yale Sch Med, Ctr Outcomes Res & Evaluat, New Haven, CT USA
[4] Yale Sch Med, Dept Internal Med, Sect Cardiovasc Med, New Haven, CT USA
[5] Yale Sch Publ Hlth, Dept Biostat, New Haven, CT USA
[6] Yale Sch Med, Dept Emergency Med, New Haven, CT USA
[7] Yale Univ, Harvey Cushing John Hay Whitney Med Lib, New Haven, CT USA
[8] Yale Sch Publ Hlth, Environm Hlth Sci, New Haven, CT USA
[9] Univ Tennessee, Coll Nursing, Knoxville, TN USA
[10] Univ Tennessee, Hlth Sci Ctr, Grad Sch Med, Dept Surg, Knoxville, TN USA
[11] Univ Kentucky, Dept Neurol, Coll Med, Lexington, KY USA
[12] Kentucky Neurosci Inst, Lexington, KY USA