1.   The patient described here and the fellow traveller with a positive throat culture both had a contact with a local inhabitant, during which exchange of saliva occurred.

2.   Backus denied the DNC had any knowledge WGBH was breaking internal and, possibly, federal rules when the exchange occurred.

3.   But the more interesting exchanges occur when people raise personal issues, most having to do with sex.

4.   Exchanges like that occur often.

5.   Jurors had already left the courtroom before the exchange occurred.

6.   Lymphocytes had not only packed themselves into the chest lymph nodes but also spread throughout the delicate alveoli, the membranes where gas exchange occurs in the lungs.

7.   No such exchange occurred between King and Tucker during the broadcast.

8.   Not that nasty exchanges did not occur in the hallways and suites of the Golf Resort.

9.   Several acidic exchanges occurred between Reno and Rep. Dan Burton, R-Ind., who is chairman of the House panel.

10.   Similar exchanges occurred about other women.