Antonio Costa de Oliveira, President of the International Crop Science Society, Professor of Universidade Federal de Pelotas.

翟虎渠，中国作物学会理事长，中国农业科学院原院长。

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Agency chief Antonio Maria Costa says other nations in the area may join the effort.

VOA: special.2009.05.27

Antonio Maria Costa, who is with the United Nations Office on Drugs and Crime.

VOA: standard.2010.06.23

Marco Antonio Siqueira Costa said the last time he saw his brother, sister-in-law and niece was a few days ago, before mud buried their house.

CNN: STORY HIGHLIGHTS

At the time, UN Office on Drugs and Crime head Antonio Maria Costa said he feared Guinea-Bissau could become a "narco-state" unless donors did more to make the police force more effective.

BBC: NEWS | Africa | Deserted cocaine boat in Senegal

The 16-year-old took the first set 6-0 against Juan Antonio Marin before the Costa Rican wildcard retired in the second with a knee injury.

BBC: Agassi powers through