Yushchenko told reporters as he arrived at the Rudolfinerhaus clinic that he would stay until 13 August, unless tests were finished before then.
Yushchenko has accused Ukrainian authorities of trying to poison him in the run-up to a presidential vote marred by fraud.
Yushchenko first fell ill in September and was rushed to the Vienna hospital. He resumed campaigning later in the month but with a pockmarked and badly disfigured face. He returned to the hospital later in September for further treatment.
(AP)
[For more RFE/RL coverage and analysis of the political crisis in Ukraine, click here.]
Yushchenko has accused Ukrainian authorities of trying to poison him in the run-up to a presidential vote marred by fraud.
Yushchenko first fell ill in September and was rushed to the Vienna hospital. He resumed campaigning later in the month but with a pockmarked and badly disfigured face. He returned to the hospital later in September for further treatment.
(AP)
[For more RFE/RL coverage and analysis of the political crisis in Ukraine, click here.]
