11.   Biologists often cut open test animals to study what happens when they are injected with drugs or diseases, he said.

12.   The officer said NATO is still studying what happened, but that evidence appeared to show a tractor hit in the second convoy.

13.   Switzerland on Wednesday set up an independent team of experts to study what happened to Jewish assets deposited in Swiss banks during the Nazi German period.

14.   Switzerland moved Wednesday to set up an independent team of experts to study what happened to Jewish assets deposited in Swiss banks during the Nazi German period.