Teicoplanin induced drug hypersensitivity syndrome.

We thank the many women who completed questionnaires for this study. We are grateful to the staff at the collaborating breast screening units and at the Million Women Study coordinating centre for their valuable contribution to the study and to Adrian Goodill for producing the figure. Contributors: Emily Banks, Gillian Reeves, Valerie Beral, and Julietta Patnick had the original idea for the study, with important input on practical aspects of study design from Barbara Crossley, Elizabeth Hilton, and Moya Simmonds. Diana Bull analysed the data; Emily Banks, Gillian Reeves, Valerie Beral, Julietta Patnick, and Matthew Wallis interpreted the data. Stephen Bailey, Nigel Barrett, Peter Briers, Ruth English, Alan Jackson, Elizabeth Kutt, Janet Lavelle, Linda Rockall, Matthew Wallis, and Mary Wilson contributed to local study design and conduct. All of the authors participated in drafting the paper and gave final approval of the version to be published. Emily Banks, Gillian Reeves, and Valerie Beral are guarantors. Funding: The Million Women Study is supported by Cancer Research UK, the Medical Research Council, and the NHS Breast Screening Programme. Competing interests: None declared. Ethical approval: The study was approved by the Anglia and Oxford Multi-Centre Research Ethics Committee.