1. Preamble to the Constitution of the World Health Organization as adopted by the International Health Conference, New York, 19-22 June, 1946; signed on 22 July 1946 by the representatives of 61 States (Official Records of the World Health Organization, no. 2, p. 100) and entered into force on 7 April 1948.
2. Health-related quality of life measurement for evaluation research and policy analysis;Kaplan;Health Psychol,1982
3. What constitutes quality of life? Concepts and dimensions;Patrick;Qual Life Cardiovasc Care,1988
4. Definition and conceptual issues;Schipper,1990
5. Recommendations on health-related quality of life research to support labeling and promotional claims in United States;Revicki;Qual Life Res,2000