31.   A post-mortem examination and toxicology tests will be carried out on Thursday.

32.   Among the procedures was a toxicology test, which is done when the cause of death is unknown.

33.   An autopsy did not immediately reveal a cause of death, pending toxicology tests.

34.   Before the compounds can be tested on humans, they have to be subjected to stringent toxicology tests.

35.   But advanced toxicology tests determined the patients were given succinylcholine, a drug used to stop breathing temporarily, for example when a breathing tube is inserted before surgery.

36.   But a pathologist said toxicology tests may be unable to establish whether the victims suffered a sudden deprivation of oxygen.

37.   But he said State Police are awaiting results of toxicology tests before determining whether her death was accidental.

38.   But toxicology tests may be worthless in attempting to verify the theory that the victims suffered oxygen deprivation because of a sudden decompression of the aircraft.

39.   Coroner Ron Flud said his report could take weeks because toxicology tests and laboratory analyses were still being conducted.

40.   He said police planned to run toxicology tests to see if Prince had been drinking or taking drugs.