RESPIRATORY DISEASE IN ENGLAND AND THE UNITED STATES. STUDIES OF COMPARATIVE PREVALENCE.
D004739:England; D004813:Epidemiology; D006306:Health Surveys; D006801:Humans; D009787:Occupational Medicine; D015995:Prevalence; D012120:Respiration Disorders; D012140:Respiratory Tract Diseases; D012907:Smoking; D014481:United States
ENGLAND; EPIDEMIOLOGY; HEALTH SURVEYS; INDUSTRIAL MEDICINE; RESPIRATORY TRACT DISEASES; SMOKING; UNITED STATES