These cells were taken from her tumor without her knowledge or permission.

VOA: special.2010.07.21

These cells were growing faster than anyone had ever seen before.

VOA: special.2010.07.21

Soon,scientists in labs around the world were using these cells.

VOA: special.2010.07.21

If you travel by bus in Sao Paulo,Brazil these days your vehicle may be powered by hydrogen fuel cells.

VOA: special.2009.09.07

Learning about the existence of these HeLa cells was an emotional and difficult experience for the family.

VOA: special.2010.07.21

We coat the outside with these muscle cells. We place it back into this oven-like device.

VOA: special.2010.10.19

Electric signals start in nerve cells and travel along these fibers to and from the brain.

VOA: special.2009.01.06

He provided them with some of these HeLa cells to use in their own research.

VOA: special.2010.07.21

At this point,you may be wondering just where these famous HeLa cells came from.

VOA: special.2010.07.21

But there was almost no information about the person behind these famous cells.

VOA: special.2010.07.21

Jonas Salk used these HeLa cells to test the first vaccine for polio.

VOA: special.2010.07.21

And,these HeLa cells are still being made, sold and used in research today.

VOA: special.2010.07.21

These fuel cells powered the communications and computer systems.

VOA: special.2009.06.24

These are greatly reduced terrorist cells.

VOA: standard.2009.12.11