[Significance of low back pain in primary health care: a contribution].
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D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D017116:Low Back Pain / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D011320:Primary Health Care; D011446:Prospective Studies
La importancia de la lumbalgia en atención primaria: una aportación.