| As recently as 1965, bicycle and car production volumes were essentially the same, at nearly 20 million each per year, but as of 2003 bike production had climbed to over 100 million per year compared with around 50 million cars produced that year | : Payer-And Service-Specific Estimates by: - US Dept of Health and Human Services• America's Health Rankings report by the United Health Foundation, the American Public Health Association and Partnership for Prevention• |
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| report by the United Health Foundation, the American Public Health Association and Partnership for Prevention |
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