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Subjects
- United States4
- Libraries, Medical3
- Chromosome Mapping2
- Genes2
- Human Genome Project.2
- National Library of Medicine (U.S.)2
- Animal Experimentation1
- Animal Welfare1
- Animals, Laboratory1
- Biotechnology1
- Dental Research -- history1
- Education, Medical -- history1
- History of Dentistry1
- History, 17th Century1
- History, 19th Century1
- Information Services1
- MEDLINE1
- Mammals -- embryology1
- Mammals -- genetics1
- Maryland1