AU  - Williams JA, Zimmerman FJ, Bell JF
TI  - NOrms and trends of sleep time among us children and adolescents
PT  - JOUR
DP  - 2013
TA  - JAMA Pediatrics
pages = {55-60},
VI  - 167
IP  - 1
AID  - 10.1001/jamapediatrics.2013.423 [doi]
4100  - http://dx.doi.org/10.1001/jamapediatrics.2013.423
SO  - JAMA Pediatrics January 1, 2013 167(1):55