Figure 2
![Figure 2](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2F1476-069X-13-5/MediaObjects/12940_2013_Article_721_Fig2_HTML.jpg)
Three-dimensional graph of the relative risks of emergency department visits for respiratory diseases by temperature (°C) and lag days in Toronto, Canada.
Three-dimensional graph of the relative risks of emergency department visits for respiratory diseases by temperature (°C) and lag days in Toronto, Canada.