The scientists found the strongest evidence of AIDS in studies of tissue from the chimps that died.

VOA: special.2009.09.08

Stem cells from very early embryos are able to grow into any tissue in the body.

VOA: special.2009.04.07

In the process, a small piece of tissue is taken from a high quality orchid.

VOA: special.2010.04.06

She said they looked similar to tissue from human patients who had died of AIDS.

VOA: special.2009.09.08

The process calls for culturing from the merismatic tissue on a plant.

VOA: special.2010.04.06

Ruhli notes researchers used that technique to study the evolution of the tuberculosis bacteria from 2,000-year-old mummified tissue to modern-day strains.

VOA: standard.2010.05.05

Access to a Caesarean section to relieve the pressure of obstructed labor is the most common way of preventing an unborn child from pressing so tightly in the birth canal that it cuts off blood flow to surrounding tissue.

VOA: standard.2009.12.23