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Subjects
- Automobiles[remove]7
- Safety2
- United States2
- Aged1
- Air Pollution -- prevention & control1
- Automation1
- Automobile Driving1
- California1
- Forecasting1
- Health Benefit Plans, Employee -- economics1
- Health Benefit Plans, Employee -- trends1
- Health Care Costs1
- Humans1
- Hydrocarbons1
- Industry -- economics1
- Labor Unions -- economics1
- Libraries, Medical1
- Mobility Limitation1
- National Library of Medicine (U.S.)1
- Nurses1