A regional army commander reported last month that he had detected underground "cells" of Thaksin supporters in rural areas, ready to make trouble.

It is a laboratory technique for detecting cells that make (or "secrete") various substances.

It could detect malignant cells long before they even become tumor masses.

The earlier they detect cells that look cancerous, the less certain they can be of how dangerous they are.

The immune system uses these markers to detect foreign cells in the body.

The immune system can detect a difference between the body's own healthy cells or tissues, and 'foreign' cells.

The test detected cancerous cells in 96.7 percent of those cases which were later diagnosed as likely to progress to invasive cancer.

Women who get regular Pap smears detect precancerous cells early while it's still easy to treat.

It can detect malignant cells in early stage.

An ethidium homodimer assay can be used to detect dead or dying cells.