Child safety. Backpacks and back pain in children.
D000293:Adolescent; D001416:Back Pain / Q000209:etiology*; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D011312:Pressure / Q000009:adverse effects; D020069:Shoulder Pain / Q000209:etiology*; D013782:Textbooks as Topic; D016474:Weight-Bearing