Doctors used a catheter and placed two mesh tubes, called stents, into a blocked artery to help keep it open.

VOA: special.2010.02.17

Those who quickly became pregnant again were also less likely to have a pregnancy form in their fallopian tubes, a dangerous condition.

VOA: special.2010.08.11

"You've got a compact and a lipstick and at least two tubes of toothpaste in your pockets,Alfred."

VOA: special.2010.09.11

They found that a small amount of aspirin suppressed the way the cells form tubes.

VOA: special.2009.10.20

They tried it in test tubes containing the parasites.

VOA: special.2010.04.07

She saw machines,tubes,cylinders and other containers for chemical experiments.

VOA: special.2009.09.26

also imposed tariffs on steel tubes from China. The Ministry of Commerce says China "strongly opposes" the tire tariff.

VOA: standard.2009.09.14