we now show that the ld-1/ld-2 ratio for serum more promptly indicates acute myocardial infarction , being for most patients equivalent to measurement of creatine kinase ( ec 2.7.3.2 ) isoenzyme 2 ( ck-2 , ck-mb ) in serum .
C0155626
acute myocardial infarction
C0010290
ck-mb