Use of morphine and other opioids in the Nordic countries.

According to the statistics of the International Narcotics Control Board of United Nations (INCB), there are large differences in the yearly consumption of morphine among the Nordic countries. In order to assess the quality of management of cancer pain in each country, nationwide questionnaire studies were carried out in Finland, Norway, Denmark and Sweden in 1989-1992. This is a review based on the results of those four surveys.