21.   Biologists have not determined the cause of the deaths, and water tests are to be completed on Wednesday.

22.   Blackbourne oversees an office that is responsible for determining the cause of death in cases ranging from suicide to accidents to murder.

23.   A damage assessment is under way to determine the cause of the explosion and the extent of the damage to the gasoline hydrotreater.

24.   A follow-up study will be conducted later this year by the two universities to determine causes for the disparity.

25.   A hand-held Global Positioning System device helps map nests and dead vultures, which are examined to determine cause of death.

26.   A first round of tests to determine the cause of fainting was inconclusive.

27.   A. You should have an oil-service technician check your system to determine the cause of the problem.

28.   After an inconclusive autopsy Saturday, a spokesman for the county medical examiners office in Minneapolis said lab tests had been ordered to determine the cause of death.

29.   Air Force officials said investigators were trying to determine the cause of the crash, which happened at the start of a seven-hour training mission.

30.   Buildings Department Commissioner Joel A Miele convened a board of inquiry Tuesday to determine the cause of the collapse.