1. Order and history;Voegelin,1956
2. The need for a new medical model: a challenge for biomedicine;Engel;Science,1977
3. “Constitution” The First Ten Years of the World Health Organization, 1958, Geneva, WHO, p459.
4. Health care ethics: a theological analysis;Ashley,1997
5. Communicating about health: current issues and perspectives;DuPre,2000