21.   The man underwent tests for the disease Monday, but results have not been disclosed.

22.   The man had undergone anti-aggression training.

23.   The man underwent tests for the disease yesterday, but results have not been disclosed.

24.   The man was undergoing surgery.

25.   The men undergo severe sleep and food deprivation while going through maneuvers to simulate harsh battle conditions.

26.   The Scottish man was undergoing surgery late Monday night.

27.   The two men underwent blood alcohol tests, said presidential security spokesman Sergei Devyatov, according to the ITAR-Tass news agency.

28.   The two men underwent surgery and each was resting in stable condition in a regular hospital room Wednesday morning.

29.   The two men underwent surgery and each was in stable condition Tuesday morning.

30.   An official at the State Hospital said the man was undergoing surgery for a leg wound, adding that his injury was not life-threatening.