31.   Doctors tested the medicine, called prourokinase, on people who suffered a particularly serious form of the disease.

32.   Doctors have long tested mouse antibodies as drugs.

33.   Doctors tested nasal swabs, blood and tissue for anthrax, and all the tests were negative for the bacteria, officials said.

34.   However, doctors were still testing samples of the food served at the party to determine what type of bacteria caused the poisoning.

35.   In the study, doctors tested a genetically engineered form of the substance called alterplase, made by Boehringer Ingelheim.

36.   My youngest brother needed a kidney transplant and when the doctors tested me, they found I was the perfect match.

37.   Nursing home doctors seldom test for them unless a resident complains.

38.   President Fidel Ramos spent Christmas in a hospital Wednesday as doctors tested his condition following surgery to remove a life-threatening blockage in the artery to his brain.

39.   Scientists issued a call last week to hurry up and turn those discoveries into treatments doctors can test.

40.   Recently doctors tested a competing form of the treatment that uses a laser on a tube threaded into the heart to drill holes from the inside out.