1. Department of Dermatology, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin.
2. Division of Allergy, Pulmonary, and Critical Care Medicine, Department of Medicine, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin.
3. Department of Chemistry and Pharmacy, University of Sassari, Sassari, Italy.
4. Small Molecule Screening Facility, Carbone Cancer Center, School of Medicine and Public Health, University of Wisconsin, Madison, Wisconsin.
5. Middleton VA Medical Center, Madison, Wisconsin.
6. Centro de Investigación en Biotecnología Instituto Tecnológico de Costa Rica, Cartago, Republica de Costa Rica.