1. School of Korean Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
2. Korean Medicine Hospital, Pusan National University, Yangsan 626-870, Republic of Korea
3. Immune Modulator Research Center, Korea Research Institute of Bioscience and Biotechnology, 685-1 Yang-chung ri, Ochang, Chungbuk 363-883, Republic of Korea
4. Section of Pulmonary, Critical Care and Sleep Medicine, University of Illinois and the Jesse Brown Veterans Affairs Medical Center, Chicago, IL 60612, USA
5. Division of Allergy, Pulmonary, Critical Care and Sleep Medicine, College of Medicine, University of Florida and Malcom Randall VAMC, Gainesville, FL 32610, USA
6. Department of Internal Medicine, School of Korean Medicine, Pusan National University, Yangsan 626-870, Republic of Korea
7. Division of Applied Medicine, School of Korean Medicine, Pusan National University, Yangsan 626-870, Republic of Korea