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Mexico
48
Cholera -- therapy
12
Clinical Medicine
12
Epidemics
12
Medicine
12
Cholera
11
Internal Medicine
10
Peru
10
Cuba
7
Smallpox -- prevention & control
6
Argentina
4
Cholera -- prevention & control
4
Hydrotherapy
4
Hygiene
4
Materia Medica
4
Public Health
4
Spain
4
Therapeutics
4
Balneology
3
Child Care
3