11.   Yeltsin has a long history of health problems, including two serious bouts of heart trouble last year.

12.   Yeltsin has had at least two serious bouts with heart trouble and, before he began running for re-election, was prone to long absences from the public eye.

13.   Zyuganov accused Yeltsin, who had two serious bouts of heart trouble last year, of being too ill to govern.

14.   Zyuganov also accused Yeltsin, who had two serious bouts of heart trouble last year, of being too ill.

15.   In the months following the tournament several of the German players went down with serious bouts of jaundice.

16.   It was followed by a serious bout of pneumonia shortly afterwards.