1. Department of Psychological and Brain Sciences, The University of Iowa, Iowa City, Iowa;
2. Department of Health and Human Physiology, The University of Iowa, Iowa City, Iowa;
3. Department of Pharmacology, The University of Iowa, Iowa City, Iowa;
4. François M. Abboud Cardiovascular Center, The University of Iowa, Iowa City, Iowa; and
5. Nanyang Institute of Technology, Zhang Zhongjing College of Chinese Medicine, Nanyang, Henan Province, China