@article{doi:10.1001/archpediatrics.2012.337,
author = {Singh AS and Uijtdewilligen L and Twisk JR and van Mechelen W and Chinapaw MM},
title = {PHysical activity is not related to performance at school—reply},
journal = {Archives of Pediatrics & Adolescent Medicine},
volume = {166},
number = {7},
pages = {678-679},
year = {2012},
doi = {10.1001/archpediatrics.2012.337},
URL = { + http://dx.doi.org/10.1001/archpediatrics.2012.337},
eprint = {/data/Journals/PEDS/24369/plt120001_678a_679.pdf}
}