1. University of Pennsylvania School of Nursing, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
2. Monell Chemical Senses Center, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
3. Present address: Villanova University College of Nursing, Villanova, Pennsylvania.
4. Institute for Diabetes, Obesity and Metabolism, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.
5. Department of Obstetrics/Gynecology, University of Pennsylvania School of Medicine, Philadelphia, Pennsylvania.