Non-randomised studies cannot be ignored

BMJ 1994; 309 doi: https://doi.org/10.1136/bmj.309.6960.1015c (Published 15 October 1994) Cite this as: BMJ 1994;309:1015
  1. T H Bloomfield
  1. Department of Obstetrics and Gynaecology, West Wales General Hospital, Carmarthen, Dyfed SA31 2AF

    EDITOR, - James G Thornton and Richard J Lilford's assessment of the components of active management of labour is equivalent of taking a car to pieces and finding that a gearbox left lying in the road goes neither very far nor very fast.1 The strict diagnosis of labour is not the final component of the management of labour - that is delivery of the placenta; rather it is the first component, both in chronological sequence and in …

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