81.   Secret Service also is investigating for yet unknown reasons.

82.   Some have fled the area and others were not prosecuted for unknown reasons.

83.   Some lucky women, for unknown reasons, go through menopause without any symptoms.

84.   Ten have gotten visas and five are frozen out for unknown reasons.

85.   Ten minutes after picking up the girl, the helicopter was flying south when, for unknown reasons, a tail rotor broke off.

86.   The gene is not inherited and develops for unknown reasons during life.

87.   The most impressive screw-ups occur during one of the quasi-cyclical El Ninos, when Pacific waters warm for unknown reasons.

88.   The ones in these studies resulted for unknown reasons from bleeding due to a complication of therapy.

89.   The point is important because, for unknown reasons, non-Hodgkins lymphoma cases are increasing among people who are not HIV-infected.

90.   The plane out of Los Angeles was delayed, stuck in Salt Lake City for some unknown reason.