1. Department of Environmental Toxicology, The Institute of Environmental and Human Health (TIEHH), Texas Tech University, Lubbock, TX 79416, United States
2. Department of Dermatology, Johns Hopkins University School of Medicine, Cancer Research Building II, Suite 216, 1550 Orleans Street, Baltimore, MD 21231, United States
3. Western University of Health Sciences, 309 E. Second Street, Pomona, CA 91766, United States