61.   Toyoda said that the company was still trying to determine the cause of the accident and that a single clear-cut cause was unlikely.

62.   The Pentagon says that the collection of maladies, known as Gulf War Syndrome, can be traced to a single cause.

63.   There was no evidence of a single underlying cause for the illnesses that have stricken thousands of veterans on both sides of the Atlantic, he said.

64.   Without diversity, the harvests of entire regions can be wiped out by a single cause, FAO said.

65.   No single cause of the syndrome has been discovered.

66.   The disclosure was the first time the MoD has admitted that there could be a single physical cause in a number of Gulf War syndrome cases.