Elsevier

International Journal of Cardiology

Volume 185, 15 April 2015, Pages 138-140
International Journal of Cardiology

Letter to the Editor
Fitbit®: An accurate and reliable device for wireless physical activity tracking

https://doi.org/10.1016/j.ijcard.2015.03.038Get rights and content

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Conflicts of interest

None.

Acknowledgement of grant support

This work was supported by R01-HL115941 from the National Heart, Lung, and Blood Institute at the National Institutes of Health (NIH; K.W. Davidson) and an NIH Diversity Supplement R01-HL116470-02S1 (K.M. Diaz).

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This author takes responsibility for all aspects of the reliability and freedom from bias of the data presented and their discussed interpretation.

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