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31. Relations of certain meteorological conditions to diseases of the lungs and air passages as shown by statistical and other evidence =: Connexité de certaines conditions météorologiques avec les maladies des poumons et des voies respiratoires comme le démontrent la statistique et d'autres évidences

36. Community Health Service Project: a project of the Michigan State Board of Education in cooperation with the State Department of Public Instruction and the State Department of Health