1.   A couple of months ago, I had a long cardiac bypass operation.

2.   He suffered from diabetes and then had a heart bypass operation.

3.   If Dowling had developed his problem only a few months ago, he probably would have had a standard bypass operation.

4.   In June, he had a heart bypass operation.

5.   The researchers are not the first to link mental decline to bypass operations.

6.   With the advent of managed care in the United States, many patients now leave the hospital four or five days after undergoing bypass operations.

7.   Yeltsin, who is scheduled to undergo a heart bypass operation soon, checked into the Central Clinical Hospital for what his spokesman said were pre-surgery tests.

8.   He is due to have a heart bypass operation before mid-December.

9.   Yeltsin is due to have a heart bypass operation before mid-December.

10.   Yeltsin underwent a seven-hour multiple heart bypass operation Tuesday and regained consciousness Tuesday evening.