Use double quotes to find documents that include the exact phrase: "aerodynamic AND testing"

An analysis of 12 years of motor vehicle/bicycle crash data revealed that the motorist’s speed was the most important variable in whether a cyclist was seriously injured or not. At 60 km/h, 27% of cyclists suffered a severe or catastrophic injury during a collision. However, at 30 km/h, this risk was reduced to less than 10%.