Cross-sectional associations of active transport, employment status and objectively measured physical activity: analyses from the National Health and Nutrition Examination Survey
Lin Yang, Liang Hu, J Aaron Hipp, Kellie R Imm, Rudolph Schutte, Brendon Stubbs, Graham A Colditz, Lee Smith
J Epidemiol Community Health Sep 2018, 72 (9) 764-769; DOI: 10.1136/jech-2017-210265