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Why are helmets needed?

Why are helmets needed?

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of motorized two-wheelers, while this figure is between 70–90% in Thailand, and about 60% in Malaysia (3,5,6). In China, motorcycle ownership between 1987 and 2001 grew rapidly from 23% to 63%, with a corresponding increase in the proportion of traffic fatalities sustained by motorcyclists rising from 7.5% to 19% over the same period (7).

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