51.   Very few people are making the direct comparison, but we think it is valid.

52.   While there has been no direct comparison done between Propecia and Rogaine, analysts say the ease of taking a pill will vault Propecia sales over those of Rogaine.

53.   With the Citibank version, customers will get a return based on a complex formula that makes direct comparison difficult.

54.   As a result, direct comparisons of race data between the two counts were impossible.

55.   As a result, direct comparisons to the previous census were impossible.

56.   As a result, direct comparisons on race between the two counts were impossible.

57.   But no direct comparison of nasal versus injected vaccines has been done to prove if one type is any better than the other.

58.   Direct comparisons with fares on U.S. domestic flights are hard to make, due to the myriad special fares possible for flights on both sides of the Atlantic.

59.   Some Bush supporters said privately that direct comparisons almost always benefit the underdog, and that Bush runs a greater risk in a one-on-one session of not comparing favorably.

60.   Therefore, direct comparisons between the two censuses are impossible, the Census Bureau said Tuesday, angering gay and lesbian advocacy groups.