[1] Indiana Univ, Dept Med, Indianapolis, IN USA
[2] Univ Arizona, Med, Tucson, AZ USA
[3] Univ Arizona, Ctr Canc, Dept Otolaryngol, Tucson, AZ USA
[4] Indiana Univ, Div Pulm Crit Care Sleep & Occupat Med, Indianapolis, IN 46204 USA
[5] Univ Arizona, Tucson, AZ USA
[6] Indiana Univ, Med Cardiol, Indianapolis, IN 46204 USA