41.   Using DNA sequences now on deposit in DNA data banks, the study compared humans and chimpanzees.

42.   Also, the study compared students who chose coaching to those who did not, rather than randomly assigning students to one group or another.

43.   But those studies did not compare patients who had undergone the surgery with patients who had not.

44.   His study compared what women said for birth certificates and what they said in a telephone survey several years later.

45.   She said that the NIH study compared the use of cardura with a cheaper fluid-elimination drug in a population of patients at high risk of heart failure.

46.   She said well-known studies have compared older Seventh Day Adventists, a Christian sect whose members are vegetarians, and senior citizens in the population as a whole.

47.   The latest study compared patients with coronary artery disease who were taking a mix of antioxidant vitamins and drugs to those who were taking drugs alone.

48.   The study compared the widely used levadopa with the newer drug Requip, made by SmithKline Beecham, which has its U.S. headquarters in Philadelphia.

49.   The study did not compare the benefits of one cup versus two, three or four.

50.   The study compared a new infrared forehead thermometer with an ear thermometer and the tried-and-true rectal method.