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Subjects
- Data Collection -- methods1
- Databases as Topic1
- Delivery of Health Care1
- Delivery of Health Care -- organization & administration4
- Dental Caries1
- Dental Caries -- prevention & control1
- Dental Health Services1
- Diet, Healthy1
- Disabled Persons2
- Drug Industry1
- Drug Overdose -- prevention & control1
- Drug Prescriptions1
- Dyer, Rolla E. (Rolla Eugene), 1886-1971.2