41.   But, he said, more tests were ordered after an autopsy Wednesday failed to determine the cause of death.

42.   Canadian crash investigators are still trying to determine the cause of the Swissair crash, although the source of the fire is presumed to be wiring.

43.   Convened to determine the cause of the mysterious crash, experts made their cases in mind-numbing technical details.

44.   DEP officials said it would take days, perhaps weeks, to determine the cause of the rupture.

45.   Devinsky said he had not determined the cause of the seizurelike event, despite five days of tests and three days of continuous brain monitoring.

46.   Doctors are trying to determine the cause of the bleeding, which has stopped.

47.   Doctors said it was too early to determine the cause of his collapse, but routine examinations found no signs of major illness.

48.   Drivers were stepping out and peering ahead to see if they could determine the cause of the blockage.

49.   Experts are analyzing the effects in Charles County to see if they can determine the causes.

50.   Federal officials Tuesday morning joined Suffolk County homicide detectives and the state park police in a joint investigation to determine the cause of the crash.