1.   Gastric metaplasia seemed to be significantly more extensive in patients with microscopic evidence of chronic or active duodenitis in comparison with histologically normal mucosa.

2.   Experts say the microscopic metallurgical evidence needed to show a blast could have been destroyed by long immersion in saltwater.

3.   The technology had improved enough that the scientists found microscopic evidence from someone other than the victim.

4.   They also found microscopic evidence that the cancer had begun to invade blood vessels and spread alongside a vital area known as the common bile duct.

5.   In August, the National Aeronautics and Space Administration and British scientists announced that a meteorite from Mars that landed on Earth may have contained microscopic evidence of life.

6.   In August, the National Aeronautics and Space Administration said that a meteorite from Mars contained microscopic evidence of life.

7.   Scientists have not ruled out the possibility that the meteor picked up the microscopic evidence of life after hitting the Antarctic.