Papers: 10.1186/1477-7525-9-86

https://doi.org/10.1186/1477-7525-9-86

Validity of instruments to measure physical activity may be questionable due to a lack of conceptual frameworks: a systematic review

Cited by: 43
Author(s): Elena Gimeno‐Santos, Anja Frei, Fabienne Dobbels, Katja Rüdell, Milo A. Puhan, Judith García-Aymerich
Published: about 15 years ago

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