Subjects
- Child Welfare1
- Child, Preschool1
- Communicable Disease Control1
- Cross-Cultural Comparison1
- Diphtheria -- prevention & control1
- Diphtheria Toxoid1
- Electric Stimulation Therapy -- history1
- Electric Stimulation Therapy -- instrumentation1
- Employment1
- Europe1
- Exhibits as Topic1
- Health Behavior1
- Health Education1
- Health Knowledge, Attitudes, Practice1
- Health Promotion1
- Infant Care1
- Infant Nutritional Physiological Phenomena1
- Infectious Disease Transmission, Vertical -- prevention & control1
- Laboratories -- economics1
- Life Style1