AU  - Singh AS, Uijtdewilligen L, Twisk JR, van Mechelen W, Chinapaw MM
TI  - PHysical activity is not related to performance at school—reply
PT  - JOUR
DP  - 2012
TA  - Archives of Pediatrics & Adolescent Medicine
pages = {678-679},
VI  - 166
IP  - 7
AID  - 10.1001/archpediatrics.2012.337 [doi]
4100  - http://dx.doi.org/10.1001/archpediatrics.2012.337
SO  - Archives of Pediatrics & Adolescent Medicine July 1, 2012 166(7):678