00285nas a2200121   4500000000100000008004100001100001500042700001200057700001200069245004600081300003000127490000600157       2004                            d1 aZhang Jing1 aZhuo J.1 aChen N.00aStudy of motorcycle helmet use in Guangxi  a512-5. [Impact Factor 0] 0 v8