He is also a leader of a humanitarian aid organization that has been supporting a school in Haiti for years.

VOA: special.2010.02.05

The Sloan-Kettering Memorial Cancer Center in New York City has been a leader in pain research and treatments linked to cancer.

VOA: special.2009.02.10

He said they would rise up at the first sign of a leader who wished to break their chains.

VOA: special.2009.06.18

And even though a great civil war was being fought, citizens of the North prepared to choose a leader.

VOA: special.2009.12.10

From this day, you are no longer a captive among our people, but a leader and great warrior among us.

VOA: special.2010.07.31

He is a leader in the sign-making industry - a real big gun,if you know what I mean.

VOA: special.2010.11.28

Neil Risch is director of the University of California, San Francisco, Institute for Human Genetics and a leader of the new study.

VOA: special.2009.06.24

Dr.Armando Giuiliano at the John Wayne Cancer Institute in Santa Monica,California, was a leader of the study.

VOA: special.2011.03.23

In nineteen forty-one, a leader in the black community,A.Philip Randolph, threatened to lead a giant march on Washington for civil rights for blacks.

VOA: special.2011.06.30

He says the United States has been somewhat of a leader in passing hate crimes legislation.

VOA: special.2009.10.31

While he was best known for his legislative battles for America's poor and disabled people, Senator Kennedy was also a leader in foreign policy.

VOA: special.2009.09.13

Henri was a leader of a group of artists who called themselves the Ashcan School painters.

VOA: special.2011.03.13

The members meet in private, choose a leader and try to agree on a judgment.

VOA: special.2009.08.31

She was a leader in women's education in the nineteenth century.

VOA: special.2010.06.27