[Morbidity statistics in diseases requiring compulsory reporting in 1952; comparative study].
D001699:Biometry; D003141:Communicable Diseases / Q000706:statistics & numerical data*; D006801:Humans; D009017:Morbidity
COMMUNICABLE DISEASES/statistics
MORBILIDAD de las enfermedades de declaración obligatoria en 1952; estudio comparativo.