1.   Bullock underwent an angioplasty operation Tuesday to open a blocked heart artery.

2.   He had triple bypass heart surgery six years ago and this past week flew off to London for an angioplasty operation.

3.   Last year, cardiologists tried to do an artery-clearing angioplasty operation, but failed.

4.   Panday said Thursday that British cardiologist Jeremy Cromwell and his local physician, Ronald Henry, advised him to have the angioplasty operation.

5.   Taiwanese Foreign Ministry spokeswoman Catherine Chang said Lee, who had an angioplasty operation last year, needed to go to Japan to seek treatment for heart problems.

6.   He had an angioplasty operation last week.