Lag structure and harvesting paradox. Left panel: lag-response associations between various temperatures and all-cause mortality. Rome 1992–2010. Right panel: daily number of deaths attributable to heat, computed forward (green circles) and backward (yellow squares), and temperature trend. Rome July-Sept 1992.
Gasparrini and Leone BMC Medical Research Methodology 2014 14:55 doi:10.1186/1471-2288-14-55