Non-motorized vehicles and walkers: going for “broke”
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PII: S1522-8401(03)00024-7
doi:10.1016/S1522-8401(03)00024-7
© 2003 Elsevier Inc. All rights reserved.
PII: S1522-8401(03)00024-7
doi:10.1016/S1522-8401(03)00024-7
© 2003 Elsevier Inc. All rights reserved.