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Subjects
- Ambulatory Care Facilities1
- Antibodies1
- Area Health Education Centers4
- Arteriosclerosis1
- Bacterial Vaccines1
- Bacteriology1
- Biomedical Research -- economics1
- Brazil1
- Budgets3
- Canada2
- Cancer Care Facilities4
- Cardiovascular Diseases2
- Cerebrovascular Disorders3
- Chemistry, Physical1
- Community Health Services1
- Computer Communication Networks1
- Computers1
- Contracts4
- Coronary Disease1
- Correspondence as Topic9