11.   Leald said the decision was made during talks here on the eve of the Ibero-American Presidential summit, which opens on Sunday.

12.   Secretary of State Madeleine Albright will also travel to the mainland at the end of April to prepare the second Sino-US presidential summit in eight months.

13.   The accusations came after a string of spy scandals in recent years, and amid preparations for a U.S.-Russian presidential summit next month.

14.   The issue has marred U.S.-Russian relations ahead of a presidential summit next month.

15.   The move, along with U.S. sanctions on Russian steel, aggravated relations ahead of a presidential summit in Russia next month.

16.   The issue also marred U.S.-Russian relations ahead of a presidential summit next month.

17.   The timing and sequence of the presidential summits will be determined by the foreign ministers for both countries, McCurry said.

18.   The Shanghai organization is planning a presidential level summit in June in St. Petersburg.

19.   The United States and China have started senior level talks that their public statements suggested could lead either to an autumn presidential summit or to sharpened confrontation.

20.   The trade disputes have aggravated relations ahead of a presidential summit in May.