The World Health Organization is the United Nations specialized agency for health established in 1948. WHO's objective is the attainment by all peoples of the highest possible level of health i.e. a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.
Official Document System of the United Nations (ODS)
Official repository for documents published by the United Nations. The full text of documents dating back to 1992 is accessible in Portable Document Format(PDF) in all official languages of the United Nations.
United Nations Development Programme