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Overall lag structure in effects of extreme cold temperature on daily cause specific mortality in 272 main Chinese cities, 2013-15, by cause of death. Effects were defined as the risks at −1.4°C (that is, the mean of the 2.5th centile of temperature distributions) compared with the estimated minimum mortality temperature. Solid lines=mean estimates; shaded areas=95% confidence intervals; total=non-accidental deaths from all causes
