1.   Although a new and growing field in medicine, placental blood transfusions have proved effective in combating leukemia and other cancers.

2.   Although they consume lots of time, money, and effort, minimizing techniques are seldom effective in the long term.

3.   Are the procedures for doing so effective in practice?

4.   As an actor, Poitier was quite effective in his understated, quietly confident way.

5.   Doctors soon realized that this drug was also effective in relieving the symptoms of arthritis.

6.   From this analysis it can then try to identify ways in which Marketing expenditure can be made more effective in each country.

7.   Furthermore, Conservation moves are very effective in this sector and solar energy is very suitable for water heating needs.