Barbara Bloom (National Center for Health Statistics Division of Health Interview Statistics),Lindsey I. Jones (National Center for Health Statistics Division of Health Interview Statistics),Gulnur Freeman (National Center for Health Statistics Division of Health Interview Statistics) 2013: Summary Health Statistics for U.S. Children: National Health Interview Survey, 2012, <http://www.cdc.gov/nchs/data/series/sr_10/sr10_258.pdf>