00399nas a2200169   4500000000100000008004100001100001900042700001300061700001300074700001200087700001300099700001600112700001500128245006800143300001100211490000700222       2000                            d1 aStevenson Mark1 aCross D.1 aHowat P.1 aHall M.1 aBurns S.1 aLaughlin D.1 aOfficer J.00aThe child pedestrian injury prevention project: student results  a179-870 v30