AU  - Singh A, Uijtdewilligen L, Twisk JR, van Mechelen W, Chinapaw MM
TI  - Physical activity and performance at school: A systematic review of the literature including a methodological quality assessment
PT  - JOUR
DP  - 2012
TA  - Archives of Pediatrics & Adolescent Medicine
pages = {49-55},
VI  - 166
IP  - 1
AID  - 10.1001/archpediatrics.2011.716 [doi]
4100  - http://dx.doi.org/10.1001/archpediatrics.2011.716
SO  - Archives of Pediatrics & Adolescent Medicine January 1, 2012 166(1):49