USE OF NATIONAL HEALTH SERVICE GENERAL PRACTICE RECORDS IN EPIDEMIO-  LOGICAL INQUIRIES; DUODENAL ULCER--A TEST CASE.
D000043:Abstracting and Indexing; D000293:Adolescent; D001168:Arthritis; D001991:Bronchitis; D002908:Chronic Disease; D004381:Duodenal Ulcer; D004813:Epidemiology; D005190:Family; D005194:Family Practice; D058006:General Practice; D005853:Geriatrics; D006801:Humans; D008499:Medical Records; D009313:National Health Programs; D009497:Neurotic Disorders; D013222:State Medicine; D013223:Statistics as Topic; D006113:United Kingdom
ABSTRACTING AND INDEXING; ADOLESCENCE; ARTHRITIS; BRONCHITIS; CHRONIC DISEASE; DUODENAL ULCER; EPIDEMIOLOGY; FAMILY; GENERAL PRACTICE; GERIATRICS; GREAT BRITAIN; MEDICAL RECORDS; NEUROSES; STATE MEDICINE; STATISTICS