the decrease between 1968 and 1978 ( period of validity of the 8th revision of the icd ) in the three countries was mostly due to the diseases of the circulatory system : in japan , mostly to cerebrovascular diseases , in the usa , to ischaemic heart diseases , and in the frg , to other forms of heart diseases .
C0151744
ischaemic heart diseases
C0018799
of heart diseases