The problem the researchers documented also raises concerns about the vulnerability of young women.

Researchers simply cannot document the deterrent effect of capital punishment.

It was developed specifically to allow researchers to document a typical data set in the ecological sciences.

But in two new studies released last week, researchers documented still more detrimental effects of the drug, both immediate and long-term.

Researchers have now documented and photographed close to 300 animals, and say there may be more.

Researchers have documented the time spent by adult children, and others, caring for ailing relatives.

Other researchers have documented similar success stories around the world, including many from traditional societies that have used property rights to protect the environment.

Other researchers have since documented a similar increase in mice called Snell dwarfs.

For the first time, researchers have documented the success of fetal tissue transplants in humans.

Researchers have documented the bystander effect: they found that powerful people are three times as likely to first offer help to a "stranger in distress".