1. Graphs of trends in death rates for individual diagnostic grou's for each country were examined to detect any substantial alterations in rates from year to year, particularly for years in which the ICD changed from one edition to another. For example, in Czechoslovakia in 1960, deaths previously classified as cerebrovascular disease were subsequently placed in the hypertensive disease category. This procedure was reversed towards 1968. Thus the categories hypertensive disease and cerebrovascular disease were amalgamated to ensure consistent inter-
2. An interpretation of the decline in mortality in England during the twentieth century;McKeown, T.; Record, R.G.; Turner, R.D.;Population Studies,1975
3. The questionable contribution of medical measures to the decline of mortality in the United States in the twentieth century. Milbank Memorial;McKinlay, J.B.; McKinlay, S.M.;Fund Quarterly,1977
4. Health indexes sensitive to medical care variation;Martini, C.J.M.; Allan, G.J.B.; Davison, J.; Backett, E.M.;Intj Health Serv,1977
5. The production of health: an exploratory study;Auster, R.; Leveson, I.; Sarachek, D.,1972