Being a patient in certain hospitals in the month of July can be dangerous or even deadly.

VOA: special.2010.06.16

Researchers found that those with a short version of a certain gene were more likely to get depressed after a sad or difficult experience.

VOA: special.2009.06.24

Members can order a certain number of movies from the Netflix Web site.

VOA: special.2009.09.25

"Well, we know that it could be genetic. And we know that there are certain families where there is a high incidence of fibromyalgia in three generations.

VOA: special.2011.07.26

"Whereas the oil industry may find it business as usual to have a certain number of spills, it is really not acceptable, especially in this day and age.

VOA: special.2011.07.08

"One of the programming problems was try to figure out how to break an arbitrary chocolate bar into a certain number of pieces of a certain number of sizes and to do it as quickly as possible.

VOA: special.2010.03.11

A project in South Africa, Project Masiluleke, put an HIV awareness message in the unused space of certain text messages.

VOA: standard.2010.02.24

"There is a certain amount of that islander style there," Ken Walsh of the magazine USNews and World Report.

VOA: standard.2010.01.16

Jarraud notes farmers in certain parts of the world will have to adapt to a dryer climate.

VOA: standard.2009.08.30

They know it will come. They know that it will be of a certain level of quality."

VOA: standard.2009.08.31

Researchers at Wake Forest University looked at a certain protein that regulates iron and studied the amount of it in breast cancer cells.

VOA: standard.2010.08.05

But,they say they will not let the president off the hook until a number of important questions are answered and certain reprehensible acts are ended.

VOA: standard.2009.03.21

While Iraq still has a long way to go before it reaches stability, there is a certain sense of satisfaction in how the elections were conducted.

VOA: standard.2010.03.08

They are not allowed to smoke within a certain distance of those buildings.

VOA: standard.2010.02.18