Subjects
- Blankenship vs. Boyle.1
- Coal miners1
- Coal mining - Medical care.1
- Dental care1
- Dentists1
- Drugs and druggists.1
- Education. SEE ALSO Schools.1
- Federal Coal Mine Health and Safety Act 1969.1
- Health services.1
- Hospitals and hospital records.1
- Hospitals and sanitariums.1
- Lungs -- Dust diseases1
- Medicine. SEE ALSO Folk medicine.[remove]2
- Physicians - letters and papers.1
- Salt industry and trade1