1. Department of Otolaryngology-Head and Neck Surgery, Johns Hopkins Hospital, Baltimore, MD, USA
2. Caruso Department of Otolaryngology Head and Neck Surgery, Keck School of Medicine of the University of Southern California, Los Angeles, CA, USA
3. Vivían Pellas Hospital, Managua, Nicaragua
4. Dartmouth Geisel School of Medicine, Hanover, NH, USA
5. National Autonomous University of Nicaragua, León (UNAN-León), León, Nicaragua
6. Research Center on Health, Work, and Environment at the National Autonomous University of Nicaragua, Leon (UNAN-Leon), Leon, Nicaragua
7. Centre for Nephrology, University College London, London, UK
8. Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA