AU  - Kien C, Chiodo AR
TI  - PHysical activity in middle school–aged children participating in a school-based recreation program
PT  - JOUR
DP  - 2003
TA  - Archives of Pediatrics & Adolescent Medicine
pages = {811-815},
VI  - 157
IP  - 8
AID  - 10.1001/archpedi.157.8.811 [doi]
4100  - http://dx.doi.org/10.1001/archpedi.157.8.811
SO  - Archives of Pediatrics & Adolescent Medicine August 1, 2003 157(8):811