Further study may make clear which practices are most effective, and in what settings.

How much difference the study will make, however, remains to be seen.

It was indeed the very face with which his studies had made him familiar.

Few studies make specific note of which arms were measured.

He never got the habit, and his medical studies made him sure it wasn't good for you.

The study will make it even more difficult for mothers to take time off from work to raise children.

But some scientists say the study made too many assumptions.

Some studies make the case that the optimal size of a city is between 40,000 and 200,000 people.

The study did not make comparisons with earlier years or other countries.

A detailed study of all this would make an interesting read.