National study could help beat back injury.
D000062:Accidents, Occupational / Q000517:prevention & control*; D019567:Back Injuries; D001416:Back Pain / Q000209:etiology*; D002170:Canada; D004506:Education, Nursing / Q000592:standards*; D005260:Female; D006801:Humans; D008297:Male; D011795:Surveys and Questionnaires