1. Owada K , Tanaka H , Ueda Y , Date C: Epidemiology of cerebrovascular disease in Japan. Osaka City Med J 19 : 37 - 49 , 1973
2. Health and Welfare Statistics Association: Health services in Japan (Kokumin eisei no doko). Indices of Health and Welfare (Kosei no Shihyo) 26 (9 Supplement): 1-504 1979 (in Japanese)
3. WHO
: Hypertension and coronary heart disease: Classification and criteria for epidemiological studies. First Report of the Expert Committee on Cardiovascular Diseases and Hypertension. WHO Technical Report Series No. 168. Geneva WHO 1959
4. WHO
: Arterial hypertension and ischaemic heart disease preventive aspects. Report of an Expert Committee. WHO Technical Report Series No. 231. Geneva WHO 1962
5. Rose GA Blackburn H: Cardiovascular survey methods. WHO Monograph Series No. 56. Geneva WHO 1968