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Letters Contraception for women

Intrauterine devices and ectopic pregnancy

BMJ 2009; 339 doi: (Published 22 September 2009) Cite this as: BMJ 2009;339:b3864
  1. Martin P Vessey, emeritus professor of public health1
  1. 1Unit of Health Care Epidemiology, Rosemary Rue Building, Old Road Campus, Oxford University, Oxford OX3 7LF
  1. martin.vessey{at}

    The relation between intrauterine devices and ectopic pregnancy continues to cause confusion, just as it did when my colleagues and I reported the relevant findings in our cohort study in 1974.1 2

    Amy …

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