91.   Even a holding cell can be a painful experience.

92.   Even if a drug blocks one or more MMPs used by a tumor type, the cancer cells may be able to roll out a backup enzyme.

93.   Everyone assumed that human cells would be next.

94.   Embryonic stem cells seem to be considerably less provocative to the immune system than are ordinary cells.

95.   Experts say that every terrorist organization in the world has a cell in New York City, and there are similar cells all across North America.

96.   Fairly soon, though, his cell was practically the prison library.

97.   First, they must see a self-identifying tag, a molecule that tells the immune system that the infected cell is from the same individual.

98.   Fetal cells are more amenable to cloning than adult cows.

99.   First, the cells must be safe.

100.   Freundlich says the cells would be less efficient than those made on Earth because the materials would be of lower quality.