PREVENTIVE 520,606 Preventive cardiology.Proceedings of an International Symposium held at Billingehus Skovde,Sweden August 21 st,1971 under the Sponsorship of the Planning Group for Preventive Cardiology of the Swedish Medical Research Council. Ed. by„Gosta Tibblin, Ancel Keys and Lars Werko. Stockholm 1972 Almqvist and Wikselli Few York, A Halsted Press Book 8° s. 181,ilustr.