11.  The Festina team was expelled then for systematic use of illegal performance-enhancing substances, notably EPO, and several teams quit to protest police searches.

12.  The systematic use of Serbian state terror to kill thousands of people and expel nearly a million others from their homes cannot be compared to individual acts of terror.

13.  There are a few individual cases, but there is no systematic use of steroids, according to the results.

14.  But attempts to make systematic use of corporate knowledge assets arenot a recent invention.

15.  But since German unification, evidence of the systematic use of steroids among athletes has been found in once-secret East German government files.

16.  But since German unification, evidence of the systematic use of steroids to enhance performance has been found in once-secret East German government files.

17.  China has denied systematic use of performance-enhancing drugs.

18.  Festina was expelled from the race after Roussel admitted to systematic use of banned drugs.

19.  Festina was expelled from the Tour de France after Roussel admitted to systematic use of banned drugs.

20.  Festina was expelled from the Tour de France because its riders were implicated in systematic use of the banned endurance-boosting hormome EPO.