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- WORK PRODUCTIVITY 1
- WORK RESULTS 1
- WORK-RELATED DISEASES 1
- WORKERS 7
- WORKERS OF BASIC AND AUXILIARY PROFESSIONS 1
- WORKERS OF MEDICAL ORGANIZATION 1
- WORKERS OF MINING AND PROCESSING PLANT 1
- WORKERS OF RADIATION-HAZARDOUS FACILITIES 1
- WORKERS OF THE MACHINE-ASSEMBLY SHOP 1
- WORKERS OF THE METALLURGICAL SHOP 1
- WORKERS PREVENTIVE EXAMINATIONS 1
- WORKERS' HEALTH 1
- WORKFORCE 3
- WORKFORCE CAPACITY 1
- WORKING AGE 2
- WORKING AREA AIR 1
- WORKING CAPACITY 5
- WORKING CONDITIONS 15
- WORKING CONDITIONS FOR WOMEN 1
- WORKING CONDITIONS OF ENGINEERS-OPERATORS 1