[Serological investigations made in Central America during 1950, 1951, 1952 and 1953].
D001699:Biometry; D002489:Central America; D006801:Humans; D012749:Sexually Transmitted Diseases / Q000175:diagnosis*; D013587:Syphilis / Q000706:statistics & numerical data*
SYPHILIS/statistics; VENEREAL DISEASES/diagnosis
Encuestas serológicas centroamericanas realizadas durante los años 1950, 1951, 1952 y 1953.