1. Department of Neuroscience and Experimental Therapeutics, Texas A&M University Health Science Center, 8447 Riverside Parkway, Bryan, Texas 77807, United States
2. Department of Pharmacology, Alberta Diabetes Institute, University of Alberta, Edmonton, T6G 2E1 Alberta, Canada
3. Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Mansfield Road, Oxford, OX1 3TA England, United Kingdom