1. Environmental Health Center, Dallas 8345 Walnut Hill Lane, Suite 205, Dallas, TX, 72231
2. Dept. of Allergy, Beijing Union Medical College Hospital, Beijirig, PRC
3. Dept. of Physics, University of Texas at Dallas
4. Dept. of Ophthalmology, Kitasato University, Kitasato, Japan
5. Jacksonville State University, Jacksonville, Florida
6. Environmental Health Center, Dallas