1. Department of Biology, Environmental Toxicology Research Laboratory, NIH-RCMI Center for Environmental Health, Jackson State University , Jackson , MS 39217 , United States of America
2. Department of Biological Sciences, College of Science and Technology, Florida Agricultural and Mechanical University , 1610 S. Martin Luther King Blvd , Tallahassee , FL 32307 , United States of America
3. Department of Dermatology, University of Mississippi Medical Center , 2500N. State Street , Jackson , MS 39216 , United States of America