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Journal Article An International Controlled Trial in the Multifactorial Prevention of Coronary Heart Disease Get access WORLD HEALTH ORGANIZATION EUROPEAN COLLABORATIVE GROUP WORLD HEALTH ORGANIZATION EUROPEAN COLLABORATIVE GROUP Search for other works by this author on: Oxford Academic PubMed Google Scholar International Journal of Epidemiology, Volume 3, Issue 3, September 1974, Pages 219–224, https://doi.org/10.1093/ije/3.3.219 Published: 01 September 1974 Article history Received: 09 April 1974 Published: 01 September 1974
WORLD HEALTH ORGANIZATION EUROPEAN COLLABORATIVE GROUP (Tue,) studied this question.