Subjects
- Coal - Mine safety.1
- Coal miners - Medical care.[remove]3
- Coal mining - Labor organization.1
- Coal mining - Medical care.1
- Coal mining - Safety.1
- Coal mining - Working conditions.1
- Community health centers.1
- Health maintenance organizations1
- Health services.1
- Medicine2
- Rivers and river valleys.1
- Union names.1
- Unions - UMWA.1
- Unions. SEE ALSO Labor organization.1