If you have rheumatic heart disease, high blood pressure, or diabetes, or take digitalis drugs, vitamin E can be harmful.
Rheumatic heart disease is the most dangerous heart condition. 
( z1 have-degree :ARG1 ( z2 disease :name ( z3 name :op "rheumatic" :op "heart" :op "disease" ) ) :ARG2 ( z4 endanger :ARG0 z2 ) :ARG3 ( z5 most ) :ARG5 ( z6 condition :mod ( z7 heart ) ) )