Christenson, M.L., Geiger, S.D., and Anderson, H.A. (2013). Heat-related Fatalities in Wisconsin during the Summer of 2012. (Abstract only; free registration required.) WMJ. 112(5):219-23.
The authors of this study conducted a case series of 27 heat-related fatalities in Wisconsin during summer 2012, which ranked the hottest year on record for the contiguous U.S., and the fourth warmest July in Wisconsin. They provide their findings from data they analyzed from death certificates and coroner reports to characterize factors that increase vulnerability to heat-related fatality.