1. Department of Biology, University of Arkansas at Little Rock, Little Rock, Arkansas 72204, United States
2. Artie McFerrin Department of Chemical Engineering, Texas A&M University, College Station, Texas 77843, United States
3. Department of Pharmacology and Toxicology, University of Arkansas for Medical Sciences, Little Rock, Arkansas 72205, United States
4. Central Arkansas Veterans Healthcare System, Little Rock, Arkansas 72207, United States