Open Access Research article

Measuring walking within and outside the neighborhood in Chinese elders: reliability and validity

Ester Cerin*, Anthony Barnett, Cindy HP Sit, Man-chin Cheung, Lok-chun Janet Lee, Sai-yin Ho and Wai-man Chan

BMC Public Health 2011, 11:851  doi:10.1186/1471-2458-11-851

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