The designations employed and the presentation of the material in this
publication do not imply the expression of any opinion whatsoever on
the part of the World Health Organization concerning the legal status
of any country, territory, city or area or of its authorities, or concerning
the delimitation of its frontiers or boundaries. Where the designation
“country or area” appears in the headings of tables, it covers countries,
territories, cities, or areas. Dotted lines on maps represent approximate
border lines for which there may not yet be full agreement.