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Subjects
- Yellow Fever -- mortality1
- Yellow Fever -- nursing1
- Yellow Fever -- pathology1
- Yellow Fever -- prevention & control64
- Yellow Fever -- therapy39
- Yellow Fever -- transmission12
- Yellow Fever -- urine1
- Yellow Fever -- virology1
- Yellow Fever Vaccine12
- Yellow Fever Vaccine -- therapeutic use1
- Yellow fever virus2
- Yersinia pestis1
- Yohimbine -- therapeutic use1
- York Lunatic Asylum.1
- York Retreat.2
- Yoshimasu, Tōdō, 1702-1773.1
- Young Adult20
- Young Adult -- statistics & numerical data1
- Young Men's Christian Association (Philadelphia, Pa.)1
- Young, Joseph, 1733-18141