[BCG VACCINATION IN FEDERAL DISTRICT SCHOOLS].
D001500:BCG Vaccine; D002648:Child; D006801:Humans; D008800:Mexico; D009163:Mycobacterium bovis; D012572:School Health Services; D014611:Vaccination
D001500:BCG Vaccine
BCG VACCINATION; CHILD; MEXICO; SCHOOL HEALTH
VACUNACI'ON CON EL BCG EN EL MEDIO ESCOLAR DEL DISTRITO FEDERAL.