21.   Now a NASA study has pinpointed the causes of simulator sickness and has come up with suggested remedies.

22.   Once the scaffolding is stabilized, city officials said, forensic engineers will use bucket hoists to examine the damage in hopes of pinpointing a cause for the accident.

23.   State health officials said the cause of the elevated number of cases might never be known because it was difficult to pinpoint causes of cancer in a small town.

24.   The government recently found that the estuaries were contaminated, but did not pinpoint a cause.

25.   The Mavericks have performed a battery of tests on Tarpley during the past two weeks to pinpoint the cause of the pancreatitis.

26.   The newspaper quoted a local official as saying that pinpointing the causes of cancer was like trying to find a needle in a haystack.

27.   The rails are on their way back because wildlife experts were able to pinpoint the cause of their decline quickly and take steps to remove the foxes.

28.   The space agency vowed to pinpoint the cause of the navigational error.

29.   These doctors pinpoint possible causes of infertility such as age, heredity, or hormonal and environmental factors.

30.   To combat problem behavior, parents and educators often want to pinpoint single causes, Blum said.