[1] Johns Hopkins Univ, Otolaryngol Head & Neck Surg, Baltimore, MD USA
[2] Johns Hopkins Univ, Earth & Planetary Sci, Baltimore, MD USA
[3] Univ Texas Hlth Sci Ctr Houston, Otolaryngol Head & Neck Surg, McGovern Med Sch, Houston, TX USA
[4] Harvard Med Sch, Otolaryngol Head & Neck Surg, Boston, MA USA
[5] Brigham & Womens Hosp, Ctr Surg & Publ Hlth, Boston, MA USA
[6] Eastern Virginia Med Sch, Otolaryngol Head & Neck Surg, Norfolk, VA USA
[7] Washington Univ, Otolaryngol Head & Neck Surg, St Louis, MO USA
[8] Emory Univ, Otolaryngol Head & Neck Surg, Sch Med, Atlanta, GA USA
[9] Univ Calif Los Angeles, David Geffen Sch Med, Otolaryngol Head & Neck Surg, Los Angeles, CA USA
[10] Univ Alabama Birmingham, Otolaryngol Head & Neck Surg, Otolaryngol Head & Neck Surg, Birmingham, AL USA
[11] Univ Chicago, Otolaryngol Head & Neck Surg, 5501 Hopkins Bayview Circle,Rm 5A32,4940 Eastern, Chicago, IL 21224 USA
[12] Houston Methodist Res Inst, Otolaryngol Head & Neck Surg, Houston, TX USA
[13] Univ Alberta, Otolaryngol Head & Neck Surg, Edmonton, AB, Canada
[14] Univ Wisconsin, Otolaryngol Head & Neck Surg, Sch Med & Publ Hlth, Madison, WI USA
[15] Univ Illinois, Otolaryngol Head & Neck Surg, Chicago, IL USA
[16] Case Western Reserve Univ, Cleveland Clin, Otolaryngol Head & Neck Surg, Lerner Coll Med, Cleveland, OH USA
[17] Univ Calif San Francisco, Otolaryngol Head & Neck Surg, San Francisco, CA USA
[18] Northwestern Univ, Otolaryngol Head & Neck Surg, Feinberg Sch Med, Chicago, IL USA