After all, during the first years these methods did not exist.

Two methods exist to shift the center of mass to the front.

However, a few other methods exist to make these compounds.

A few better methods than the ones listed above exist, but we feel they should not be made this public.

No such method exists if both a and b are odd.

This method has existed since the beginning of time, when the universe was first formed.

"We do not use animal studies if any other methods exist to get the particular answers our scientists need for a study," she said.

Automated methods now exist to be able to do this procedure.

That time, at the end of the 1920s, no such method existed except for psychoanalysis.

Where other appropriate methods exist reference will be made to useful sources of information.