Thomas Wang at the Mass General Heart Center was the senior author of the study.

VOA: special.2009.07.15

Anthony Cordesman,senior analyst at the Center for Strategic and International studies, says the comparisons were brought home to him during a recent trip to Afghanistan.

VOA: standard.2009.09.09

Zhou Shijian, A Senior Fellow at the Center for U.S.China Relations at Tsinghua University,agrees.

VOA: standard.2010.06.21

Secretary Clinton is expected to spend the next several days in Pakistan, meeting with senior officials and community leaders in Islamabad and the country's cultural center,Lahore.

VOA: standard.2009.10.28

In a nearly 40-minute policy speech, the president cited, among other things, his orders to end any torture of detainees and close the Guantanamo Bay detention center, and the appointment of senior envoy George Mitchell to tackle the Israeli-Palestinian dispute.

VOA: standard.2009.09.23