Empirical research that attempts to answer these questions may follow a number of patterns.

Further research and study trips followed into the 1990s.

After five years of university, research in cognitive sciences and complexity followed.

Little or no other research on the subject preceded or followed that study.

By contrast, previous research showed benefits from stimulants, but only followed the children for a few days or weeks.

He said his group and others were hoping that research into other diseases would follow the same path.

However, the latest research followed patients for almost twice as long and had greater statistical power.

Finally, I should like to note that research follows certain laws.

Once production has gone, research and development will follow.

Further research and patents followed, mainly related to paper processing technology.