[1] Mayo Clin, Dept Psychiat & Psychol, Rochester, MN 55905 USA
[2] Mayo Clin, Dan Abraham Healthy Living Ctr, Rochester, MN 55905 USA
[3] Mayo Clin, Div Biomed Stat & Infomat, Rochester, MN 55905 USA
[4] Mayo Clin, Div Prevent Occupat & Aerosp Med, Rochester, MN 55905 USA
[5] Mayo Clin, Div Cardiovasc Dis, Dept Internal Med, Rochester, MN 55905 USA
[6] Mayo Clin, Dept Otorhinolaryngol, Rochester, MN 55905 USA