About the Authors

Fidias E. Leon-Sarmiento

feleones@gmail.com

Affiliations Smell and Taste Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, Department of Otorhinolaryngology: Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, Mediciencias Research Group, IPS Ramon and Cajal/Universidad Nacional, Bogota, Colombia

Edgardo A. Bayona

Affiliation Laboratorio de Neurociencias Clinicas y Funcionales, Neuro.net, Bogota, Colombia

Jaime Bayona-Prieto

Affiliation Grupo Cirineo-Neurorehabilitacion, Bucaramanga, Colombia

Allen Osman

Affiliations Smell and Taste Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, Department of Otorhinolaryngology: Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Richard L. Doty

Affiliations Smell and Taste Center, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America, Department of Otorhinolaryngology: Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, United States of America

Competing Interests

R.L.D. is President and major shareholder of Sensonics, Inc., the manufacturer and distributor of smell and taste tests, including the UPSIT. There are no patents, products in development or marketed products to declare. This does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: FEL-S RLD. Performed the experiments: FEL-S EAB JB-P. Wrote the paper: FEL-S RLD AO.