CONTROL OF INFECTIOUS DISEASES WITH REGARD TO ECONOMICALLY UNDERDEVELOPED COUNTRIES.
D002965:Classification; D003140:Communicable Disease Control; D003141:Communicable Diseases; D003906:Developing Countries; D004467:Economics; D004813:Epidemiology; D006801:Humans; D014611:Vaccination
CLASSIFICATION; COMMUNICABLE DISEASE CONTROL; ECONOMICS; EPIDEMIOLOGY; VACCINATION