CHRONIC RESPIRATORY DISEASE. HOSPITAL PATIENTS IN LONDON AND CHICAGO.
D002641:Chicago; D004739:England; D004813:Epidemiology; D006760:Hospitalization; D006801:Humans; D007087:Illinois; D008131:London; D012120:Respiration Disorders; D012140:Respiratory Tract Diseases
ENGLAND; EPIDEMIOLOGY; HOSPITALIZATION; ILLINOIS; RESPIRATORY TRACT DISEASES