| When |
Institute |
| Jun. 19 2006 |
Center for Integrative Medicine, University of Maryland School of Medicine, USA |
| Oct. 25 2005 |
China Academy of Chinese Medical Sciences |
| Feb. 18 1998 |
| Oct. 18 2002 |
China Jilin Institute of Traditional Chinese Medicine |
| May 25 2001 |
China Yanbian Changbaishan Gan-Shen Medicine Institute |
| Oct. 2000 |
Philippines Institute of Traditional and Alternative Health Care |
| Jun. 24 1998 |
National Hospital of Traditional Medicine, Vietnam |
| 1998 |
Oriental Medicine Research Center of the Kitasato Institute, Japan |
| Nov. 1997 |
Traditional Medicine Center of Mongolia |