21.   A doctor uses an instrument to grasp and pull her cervix open, inserts a flexible plastic tube into the uterus, and suctions out its contents.

22.   A week later, doctors used four screws to tighten the shoulder ligaments.

23.   AIDS doctors use resistance tests in the belief that the findings help them make more informed decisions about which drugs to use.

24.   But a number of problems still must be solved before doctors can use the progenitor cells to repair damaged brains.

25.   But can doctors use these distress flares as warnings of disease or illness?

26.   But it took more than two decades before doctors considered using lasers for a similar purpose.

27.   But not many doctors are using them for general screening, at least not in this area.

28.   But the defense also had experts who said the drug doses Naramore gave Leach were far lower than what a doctor would use to deliberately kill someone.

29.   But the ultimate goal is to make microfluidics a consumer market by creating chips a doctor could use to make a foolproof diagnosis from a pinprick of blood.

30.   Catalona said that in the near future doctors routinely will use several blood tests to help diagnose cancer.