11.   There was, however, no evidence that these Chinese swimmers had used drugs.

12.   Most swimmers use the events as a warmup for the Olympic trials, so event organizers were stunned when the record was broken.

13.   Some fin swimmers use a snorkel, but it was not clear if it would be used in possible Olympic competition.

14.   The Pan Pacific Swimming Association on Sunday announced it was banning China because of evidence Chinese swimmers have used performance-enhancing drugs.