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Avantpropos par C A Colliard
Period of Time
Method of Study of Life Experience of Specific Group
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according administration age group American Journal analysis annual area birth Causes of Death Chapter children chronic diseases column commercial concurrence control program contrôle Convention collective coût marginal data regarding days death rates development diphtheria disease économique entreprises nationalisées entreprises publiques example exposed factors families female field first général general population gestion give given Hagerstown health department high hospital household associates illness industrielle investigation juridique l'entreprise l'Etat made material members mortality National need needed New York number obtained per cent percentages period of time person-years personnel persons planning premature present prevalence primary privé problem procedures production Public Health Reports punch card records Régie Renault régime requires results sample satisfactory secondary attack rate secteur show small social société anonyme sociétés specific spread standard statistical data statut survey syphilis Table tabulation techniques Tennessee tion tuberculosis typhoid used using usually value Vital Statistics white Williamson County work workers years of age