Yet sleep scientist Ying-Hui Fu at the University of California, San Francisco,says little is known about the basic need for sleep.

VOA: special.2009.08.26

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

The researchers were from the University of California, San Francisco, Stanford University and Columbia University.

VOA: special.2010.03.03

Three researchers at the University of California at San Francisco presented information about a drug company's marketing campaign that included placing research articles in medical journals.

VOA: special.2009.10.08

Kirsten Bibbins-Domingo at the University of California San Francisco, was the lead author.

VOA: special.2010.01.27

Elizabeth Blackburn does her research at the University of California in San Francisco.

VOA: special.2009.12.08

The winners are Elizabeth Blackburn from the University of California,San Francisco;

VOA: special.2009.10.07

The researchers work at the University of California in San Francisco.

VOA: special.2010.03.09

Dr.Rebecca Smith-Bindman of the University of California San Francisco led a study of more than one thousand patients in four of the city's biggest hospitals.

VOA: standard.2010.01.30