Benefits of active commuting—causality mattersBMJ 2017; 357 doi: https://doi.org/10.1136/bmj.j2425 (Published 19 May 2017) Cite this as: BMJ 2017;357:j2425
- David Colquhoun, research professor
- University College London, London, UK
Although the paper by Celis-Morales and colleagues on active commuting has the usual token nod to the problem of causality, it is written as though it shows that cycling …
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