1. Department of Forestry, National Chung Hsing University, Taichung-402, Taiwan
2. Clinical Psychiatrist, Taiwanese Society of Psychiatry, Taipei-104, Taiwan
3. The Experimental Forest Management Office, National Chung-Hsing University, Taichung, Taiwan
4. Agricultural Biotechnology Research Center, Academia Sinica, Taipei, Taiwan
5. Bachelor Program of Biotechnology, National Chung Hsing University, Taichung-402, Taiwan