We apologise for a technical error that resulted in the omission of the names and addresses of the first five authors of the authors' reply to this cluster of letters (10 August, p 337). The authors should have been published as follows.
John Macleod clinical research fellowDepartment of Primary Care and General Practice, University of Birmingham, Birmingham B15 2TT
George Davey Smith professor of clinical epidemiologyDepartment of Social Medicine, University of Bristol, Bristol BS8 2PR
Pauline Heslop research assistantNora Fry Research Centre, University of Bristol, Bristol BS8 1TX
Chris Metcalfe research assistantMRC Biostatistics Unit, University of Cambridge, Cambridge CB2 2SR
Douglas Carroll professor of applied psychologySchool of Sport and Exercise Science, University of Birmingham, Birmingham B15 2TT
Carole Hart research fellowDepartment of Public Health, University of Glasgow, Glasgow G12 8RZ
We also apologise for errors in the citation of references in this letter. The reference list is correct, but the data in the table from the Whitehall II study are abstracted from references 1 and 5 [not references 1 and 3 as published]. In the text, validation of the Reeder stress inventory is described in reference 3 [not reference 4 as published in the third paragraph] and experimental evidence of the relation between depression and coronary mortality is reported in reference 4 [not reference 5 as published in the fourth paragraph]. The other citations of references are correct.