Smoking and the use of the health services.
D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D004739:England; D005194:Family Practice; D005260:Female; D006761:Hospitals / Q000706:statistics & numerical data; D006792:House Calls; D006801:Humans; D007902:Length of Stay; D008297:Male; D008875:Middle Aged; D010044:Outpatient Clinics, Hospital / Q000706:statistics & numerical data; D010548:Personal Health Services / Q000706:statistics & numerical data*; D012737:Sex Factors; D012907:Smoking / Q000150:complications / Q000453:epidemiology*