Bicycle helmets reduce risk of serious head injury by nearly 70%, study finds https://www.theguardian.com/lifeandstyle/2016/sep/22/bicycle-helmets-reduce-risk-of-serious-head-injury-by-nearly-70-study-finds?CMP=share_btn_tw …
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Bicycle helmets reduce risk of serious head injury by nearly 70%, study finds https://www.theguardian.com/lifeandstyle/2016/sep/22/bicycle-helmets-reduce-risk-of-serious-head-injury-by-nearly-70-study-finds?CMP=share_btn_tw …