Our study indicates that unsafe sexual practice may have increased in men from 1987.

The practice of women maintaining their surname after marriage is increasing.

This practice has increased over the past few decades and today now accounts for a significant portion of illegal immigration in countries around the world.

This practice increases the risk of transmission from women to men.

It was not until the 1990's that the practice of community unions increased.

This practice started in the early 1990s and has increased since.

While the practice increases the safety of donated blood, it has created problems.

This means that the practice of using two separate interpreters to translate what someone is saying will increase.

On the positive side, some of the problems have been acknowledged and "good practice" is increasing.

However, the practice of Protestantism has increased markedly in recent decades.