[1] Mayo Clin Arizona, Dept Otolaryngol Head & Neck Surg, Phoenix, AZ USA
[2] Univ Arizona, Coll Med Phoenix, Phoenix, AZ USA
[3] Univ Virginia, Dept Med, Charlottesville, VA USA
[4] Univ Virginia, Dept Microbiol, Charlottesville, VA 22908 USA
[5] St Josephs Hosp, Div Maternal Fetal Med, Phoenix, AZ USA
[6] Stanford Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, Stanford, CA 94305 USA
[7] Mayo Clin Arizona, Div Allergy Asthma & Clin Immunol, Phoenix, AZ USA
[8] Loyola Univ, Med Ctr, Dept Otolaryngol Head & Neck Surg, 2160 S 1st Ave, Maywood, IL 60153 USA
[9] Univ Coll London Hosp, Royal Natl Throat Nose & Ear Hosp, London, England