The first cooperative efforts toward international action were made in the twentieth century in order to prevent the spread of diseases from one region to another. The subsequent institutionalization of these efforts gave birth to the World Health Organization. As the necessity for a single worldwide health system came to be recognized and felt as a pressing need to preserve the highest standards of health, WHO was seen as a way to satisfy this need. Also, the concept of "health for all", embodied by WHO, is fundamental to the attainment of peace, welfare and security of nations. The assumption ...