- Author: World Health Organization
- Language: English
- Year: 2007
- Author: WHO Regional Office for the Western Pacific
- Language: English
- Year: 2009
- Author: Institute of Chinese Materia Medica
- Language: English
- Year: 1989
- Author: Who Regional Office for the Western Pacific
- Language: English
- Year: 1995
- Author: A.M. Davies H. Pettersson
- Language: English
- Year: 2002
- Author: World Health Organization
- Language: English
- Year: 2009
- Author: World Health Organization
- Language: English
- Year: 2002