[Diseases of the circulatory system in the National Sanatorium Oshima Seisho-en. I: Abnormal ECG findings and hypertension].
D000328:Adult; D000368:Aged; D002318:Cardiovascular Diseases / Q000453:epidemiology*; D004562:Electrocardiography; D005260:Female; D006782:Hospitals, Special; D006801:Humans; D006973:Hypertension / Q000453:epidemiology*; D007564:Japan; D007914:Leper Colonies; D008297:Male; D008875:Middle Aged