Mortality and the business cycle: some questions about research strategies when utilizing macro-social and ecological data.
D000328:Adult; D003132:Commerce; D003327:Coronary Disease / Q000401:mortality; D004463:Ecology; D004467:Economics / Q000639:trends; D006801:Humans; D008875:Middle Aged; D009026:Mortality; D012107:Research Design / Q000592:standards; D012907:Smoking / Q000523:psychology; D013315:Stress, Psychological / Q000523:psychology