Columbia subject headings:
Medical geography--Burkina Faso.
Medical geography--Côte d'Ivoire.
Public health--Burkina Faso.
Public health--Côte d'Ivoire.
Harvard subject headings:
Environmental health--Burkina Faso.
Environmental health--Côte d'Ivoire.
Epidemics--Burkina Faso.
Epidemics--Côte d'Ivoire.
Princeton subject headings: