[Half a century of BCG vaccination. A critical review].
D000569:Americas; D001500:BCG Vaccine / Q000266:history*; D005060:Europe; D049673:History, 20th Century; D006801:Humans; D014376:Tuberculosis / Q000266:history* / Q000517:prevention & control; D014611:Vaccination / Q000191:economics
D001500:BCG Vaccine
Medio siglo de vacunación BCG. Una revisión crítica.