1.   Other researchers praised the new work, but cautioned that more analysis must be done to assess the reliability of the different kinds of data used in this study.

2.   Bildt said that much more needs to be done to assess the situation.

3.   She also added that no work had been done to assess the condition of the buildings.

4.   Further work had to be done to assess the degree of risk to consumers following the ban on sales of specified bovine offal, Weissmann said.

5.   Further work had to be done to assess the nature of the risk to consumers following the ban on sales of specified bovine offal, Weissmann said.