41.   Drug companies have denied wrongdoing, saying the government has long known that guidebook prices are only rough estimates.

42.   For now, everyone will have to settle for rough estimates.

43.   He said this is a rough estimate.

44.   However, when asked to give a rough estimate of what returns Chinese officials consider acceptable, Shi declined.

45.   No precise damage estimate was available Friday, but fire officials gave a rough estimate of several million dollars.

46.   That figure is a rough estimate as no one has ever made a precise calculation.

47.   The Chinese dead of Hanaoka remain uncounted except in rough estimates.

48.   This however, is only a very rough estimate as the details have yet to be worked out.

49.   While the government maps produced so far are only rough estimates of exact gene sequences, scientists said they are still immensely useful tools.

50.   That was a rough estimate, and the current toll is unknown, with bodies buried quickly, and estimates varying widely.