In what grade should backpack safety education begin in schools?
Navuluri
Sriram
S
D000293:Adolescent; D017677:Age Distribution; D019567:Back Injuries / Q000517:prevention & control*; D001835:Body Weight; D002648:Child; D006266:Health Education; D006801:Humans; D017770:Lifting; D013334:Students; D014481:United States