@misc{indiciaeaeeec1695a4c, title = {Dose-response relation between physical activity and sick leave.}, author = {K I Proper and S G van den Heuvel and E M De Vroome and V H Hildebrandt and A J Van der Beek}, year = {2006}, doi = {10.1136/bjsm.2005.022327}, url = {https://pubmed.ncbi.nlm.nih.gov/16432007/}, note = {Source identifier: 16432007} }