The medical outcomes research project Low Back Pain Study.
Hoover
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NW
Milwaukee Medical Clinic, WI, USA.
Wencel
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SL
D000293:Adolescent; D000328:Adult; D000368:Aged; D006302:Health Services Research; D006801:Humans; D017116:Low Back Pain / Q000175:diagnosis* / Q000628:therapy*; D008875:Middle Aged; D017063:Outcome Assessment, Health Care; D011320:Primary Health Care / Q000458:organization & administration; D016730:Program Development; D012107:Research Design; D011795:Surveys and Questionnaires; D014922:Wisconsin