Institution: | 1. Monell Chemical Senses Center, University of Pennsylvania, Philadelphia, PA 19104 USA;2. Department of Otorhinolaryngology and Human Communication, University of Pennsylvania Medical School, Philadelphia, PA 19104 USA;3. Department of Chemistry, The Pennsylvania State University, University Park, PA 16802 USA;4. Endocrine Section, Department of Medicine, University of Pennsylvania Medical School, Philadelphia, PA 19104 USA |