[EPIDEMIOLOGICAL AND SOCIAL SIGNIFICANCE OF TUBERCULOSIS OF THE LUNGS IN AGED AND SENILE PATIENTS].
D002031:Bulgaria; D003140:Communicable Disease Control; D004813:Epidemiology; D005853:Geriatrics; D014376:Tuberculosis; D014397:Tuberculosis, Pulmonary
BULGARIA; COMMUNICABLE DISEASE CONTROL; EPIDEMIOLOGY; GERIATRICS; TUBERCULOSIS, PULMONARY