NEW YORK - The trial date for the Department of Justice's antitrust lawsuit against Visa International and MasterCard International has been changed to June 12 from June 7 because Judge Barbara Jones had emergency surgery.

Ms. Jones, who had an appendectomy, also rescheduled the pre-trial hearing to June 8 from June 1.

The trial, to be held in United States District Court for the Southern District of New York, will focus on the credit card associations' membership rules and allegations that they have hampered competition in the credit card industry.

The Department of Justice filed its lawsuit in October. 1998 after several years of investigation.

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