Further studies need to be done to precisely identify them.

Although further studies need to be done to confirm this.

However, both sides can usually agree that more studies need to be done in order to support one side or the other.

However, further studies need to be conducted in order to support this particular proposal.

More studies need to be carried out about them, as they are one of the lesser known group in the state.

Future studies will need to be conducted to test this hypothesis.

"It does work the studies just need to be done a little bit better."

More studies need to be done on the call frequency ranges of each species.

About 11,000 women have already been enrolled, but the study needs an 5,000 more to meet its goal.

However, longer and more detailed studies need to be done on this subject.