Thus , one - third of the subjects were international - level players who played in the European Championship and the European League .
Testing included 96 % of all the players participating in the highest level of the National competition and 12 members of the National team .
One - third of the subjects were international - level players who played in the European Championship and the European League .
Testing included 96 % of all the players participating in the highest level of the National competition and 12 members of the National team .