31.   After three months, doctors found no differences in their acne.

32.   British researchers have found little difference between the health of soldiers who saw action in the Gulf War and those who did not.

33.   But a tour found subtle differences in almost every department.

34.   But beyond the promise of a firmer hand, it was difficult to find substantive differences between his views and those of Peres.

35.   But even when they look beyond that core issue, the opposing camps quickly find irreconcilable differences.

36.   But intermediate and advanced word processor users will soon find big differences between Word and Writer.

37.   But Michelson never found any difference.

38.   But the details of the survey found great differences by race, income and location.

39.   But we found little difference among inside temperatures.

40.   But when the dust settled, it was hard to find much difference on the major issues.