21.   Three days later, he had an angioplasty.

v. + angioplasty >>共 18
undergo 43.79%
perform 20.92%
have 13.73%
do 3.27%
follow 3.27%
need 2.61%
use 2.61%
balloon 1.31%
call 1.31%
get 1.31%
have + n. >>共 1145
chance 2.31%
problem 2.14%
trouble 1.82%
right 1.67%
plan 1.46%
idea 1.28%
lot 1.20%
time 1.09%
child 1.04%
power 1.04%
angioplasty 0%
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