Another large difference was observed between the $1 and $20 groups.

Some differences in memory performance have been observed between men and women.

We have already observed differences in patients with advanced cancer.

No differences in effects on outcome after four months were observed.

However, this difference was not observed in all domestic dogs.

Again, differences in sizes, species and habits can be observed.

But it added, "the explanation for the difference observed in this analysis is unclear."

The results are very much the same as in the Swedish material, with the exception of 'challenge', where no difference was observed.

However, differences that arise directly from gene activity have also been observed.

No difference in muscle damage was observed between male and female mice.