• The last paragraph of the letter from Gerry Kendall and Colin Muirhead of the National Radiological Protection Board (7 December, p 30) was erroneously altered in the editing. It should have read: “Your article mentions claims that a significant number of cases of multiple myeloma have been omitted from the third study. A response to these suggestions, setting out the issues involved, can be found on the NRPB website (www.nrpb.org/press/response_statements/2002/response_statement_7_02.htm). We are grateful to Sue Rabbitt Roff for participating in a detailed intercomparison of her cases with those held by the NRPB. The findings of this intercomparison will appear when the third analysis is published.”
