Infectious-Contagious Diseases In Peru In the Period 1939 To 1944.
D001699:Biometry; D003141:Communicable Diseases / Q000453:epidemiology* / Q000706:statistics & numerical data*
COMMUNICABLE DISEASES/epidemiology and statistics
ENFERMEDADES infecto-contagiosas en el Perú en el periodo 1939 a 1944.