21.   Once scientists know the job of every gene, they should be able to discover the causes of many diseases.

22.   Rather, create a system that discovers the causes of the errors and prevents them from recurring.

23.   Sometimes discovering the cause of an accident takes longer, and the smoking gun is tinier.

24.   Typically, it takes the NTSB six months to a year to investigate such cases and discover their causes, Morningstar said.

25.   Vogt said he was confident that investigators would discover the cause of the crash in six to eight months because of all the information they had.

26.   Both cars were immediately taken into the boxes to discover the cause of the accidents.

27.   But they expressed frustration at the failure to discover the cause of the crash as well as offers of compensation from the airline that they consider too little.

28.   Doctors discover a cause, such as uterine abnormalities, for only half, leaving the rest with no explanation and no treatment.

29.   Efforts will focus on discovering the causes of the fires, smothering them and evaluating damage.

30.   He fled when the cause of the deaths was discovered earlier this week.