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Subjects
- Central America[remove]8
- Mexico4
- South America3
- North America2
- African Continental Ancestry Group1
- American Native Continental Ancestry Group1
- Anthropology1
- Chromosomes1
- Disease Eradication -- history1
- Egypt1
- European Continental Ancestry Group1
- Expeditions1
- Fishes -- classification1
- Fresh Water1
- History, Ancient1
- Hookworm Infections -- prevention & control1
- Indians, Central American1
- Language1
- Paleography1
- Periodicals as Topic1