00430nas a2200145   4500000000100000008004100001100001200042700001600054700001400070700001200084245016300096300001200259490000700271050000600278       2007                            d1 aLi Ming1 aSibbritt D.1 aDibley M.1 aHong Y.00aFactors associated with adolescents' overweight and obesity at community, school, and household levels in Xi'an City, China - results of hierarchical analysis  a635-43.0 v62  aY