31. And a false-positive reading could lead a patient to unnecessary surgery and removal of the ovaries. 32. A few samples yielded positive readings of combustibility, but none were high enough to pose a hazard. 33. The positive reading means the number of companies reporting stepped up activity was larger than those reporting weakening business. 34. The defense contends the test is scientifically unsound and can have positive readings on everything from dirt to bananas. 35. In the United States 45 of 240 products tested, or 18.8 percent, had positive readings . 36. But analysts and government officials warned against too much optimism that the positive reading will continue in months ahead. 37. Mollified by some positive readings on the economy, investors bid blue chips higher Friday following three straight losses. 38. By design, initial test procedures favor positive readings , erring on the side of caution to protect soldiers. 39. She continues to say that she never took steroids and that a false positive reading resulted from birth control pills. 40. Still, the positive reading means the number of companies reporting stepped-up activity surpassed those reporting weakening business.
