1. Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
2. School of Pharmaceutical Sciences, South China Research Centre for Acupuncture and Moxibustion, Guangzhou University of Chinese Medicine, Guangzhou 510006, PR China
3. Vascular Biology Centre, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
4. Department of Medicine, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
5. Department of Cell Biology and Anatomy, Medical College of Georgia, Augusta University, Augusta, GA 30912, USA
6. Veterans Administration Medical Centre, Augusta, GA 30912, USA