31.   Studies comparing heart attack rates in women taking hormone replacement therapy to those who did not found lower rates of heart disease in women taking the hormones.

32.   That information, in turn, should enable customers to compare rates among different companies.

33.   The book-to-bill ratio compares the rate of orders to shipments.

34.   The book-to-bill ratio compares the rate of orders to that of shipments.

35.   The collection of data on deaths from cardiac arrest is haphazard, making the rates difficult to compare.

36.   The ease of comparing hotel rates in different countries will benefit leisure travelers, according to PricewaterhouseCoopers, as well as corporations and associations looking to book meetings.

37.   The one study that compared recidivism rates for high-risk offenders subject to public notification with a control group found no overall difference in their tendency to repeat offenses.

38.   There also are subentries that compare rates entirely within the Bay Area or any other region that interests you.

39.   To figure the cost of investor fickleness, Ms. Lallos compared rates of return based on actual cash flows with theoretical results from dollar-cost averaging.

40.   We decided the best way to compare cruise rates would be online, so we spent a few hours on Travelocity.com looking for the most economical fare.