Work load and back pain.
Heliövaara
M
M
D001416:Back Pain / Q000453:epidemiology* / Q000209:etiology; D004812:Epidemiologic Methods; D005260:Female; D005387:Finland / Q000453:epidemiology; D006801:Humans; D015994:Incidence; D008019:Life Style; D008297:Male; D009784:Occupational Diseases / Q000453:epidemiology* / Q000209:etiology; D012307:Risk Factors; D016474:Weight-Bearing; D016526:Workload