11.   They said medical tests were being performed to determine whether Ms. Johnston had also been stabbed.

12.   A necropsy was to be performed to determine the cause of death.

13.   Additional tests are performed to determine which virus is present.

14.   An autopsy will be performed to determine the cause of death, said police spokesman Sgt. Dan Mark.

15.   An autopsy was being performed to determine the cause and time of death, police said.

16.   An autopsy was being performed to determine the cause of death, they said.

17.   An Argentine federal judge has ordered DNA tests be performed to determine the identities of the three passengers.

18.   Autopsies were to be performed to determine the cause of death.

19.   Autopsies will be performed to determine the cause of death, but police said they believe the children were drowned.

20.   Blood tests will be performed to determine whether Williams was under the influence of drugs or alcohol, he said.