Winter and cardiovascular mortality.
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D001938:Brazil / Q000453:epidemiology; D002318:Cardiovascular Diseases / Q000401:mortality*; D003080:Cold Temperature; D019992:Databases as Topic / Q000706:statistics & numerical data; D006801:Humans; D012189:Retrospective Studies; D012307:Risk Factors; D012621:Seasons; D015996:Survival Rate / Q000639:trends; D014505:Urban Population