The new study will concentrate on the young because they are considered particularly susceptible to radiation-induced thyroid disease.

A 2008 study concentrated on two populations of northwestern Siberia.

The other specialized study concentrated on gender relations in the corporate workplace.

Many studies have concentrated on the brain reward system and how similar it is across mammals.

Past studies have concentrated on those age 65 and over or 75 and over.

Past studies of reading concentrated on the text and paid little attention to the reader who was engaged with it.

It could be that the available studies have concentrated specifically upon women, and that men do give assistance which is less visible.

Most current studies have concentrated on flowering plants from about 100 million years ago, when they were becoming abundant forms of vegetation.

The study concentrated on a lake called simply Lake 239 and its watershed.

But the new report did not deal with exposure to radon because a previous study concentrated on that problem.