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The Chirurgical Works of Percivall Pott
Relations of Water to the Propagation of Fever
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age groups areas aseptic meningitis attack rate average biological calories camps causal causes of death cent characteristic cigarette smoking cigars clinical contagium coronary heart disease countries cultural death rate dental dental caries develop diet dietary fat ECHO epidemic epidemiological Erie County etiological examined expected number factors faucets fluoride Fresno County Health Service Hodgkin's disease hospital household contacts human hypertension incidence increase individuals infection rates interview investigation Kern lung cancer males mass vaccination method mortality ratio mosquito Newburgh nonsmokers number of deaths observed to expected occupation occurred onset paralytic poliomyelitis patients pellagra percent persons pipe poliomyelitis poliovirus population present prevalence protein Public Health ratio of observed relationship reported rural sample selection Shigella smallpox socio-cultural specific subcamp survey Table tarsalis tested tion transmission tubercle bacillus tuberculosis Type typhoid fever urban vaccination variables vector virus viruses water fluoridation