1.   Tests confirmed the presence of an infection.

2.   After failed ERCP elsewhere, ERCP in our centre confirmed the presence of a stricture at the level of a clip.

3.   This study confirms the presence of this abnormality in patients with acute watery diarrhoea, by a dialysis technique that assessed absorption from the rectum.

4.   The first step in the investigation of these patients is to confirm the presence of iron deficiency.

5.   An independent toxicology firm, hired by Merzer, tested those chips and confirmed the presence of perchloroethylene, a powerful cleaning solvent.

6.   And any potentially lethal anthrax brought in for testing was destroyed immediately after its presence was confirmed.

7.   And most of the mycoplasma agent invades tissue rather than blood cells, requiring an extraordinarily sensitive detection process to confirm its presence in blood samples.

8.   Blood tests were used to confirm the presence of Bordetella pertussis, the bacterium that causes the cough.

9.   A substance called Luminol, the police later said, confirmed the presence of blood in the Bronco.

10.   But the Centers for Disease Control in Atlanta has confirmed its presence, and the most recent State Department consular information sheet about Malawi warns of it.