Methods used do not support conclusions
- Sarah Vause,
- Michael Maresh,
- Khaled Khaled
- Research register Director Research registrar Medical Audit Unit, St Mary's Hospital, Manchester M13 0JH
EDITOR,—We have three comments on the methods used by Philip Steer and colleagues in their study of the relation between maternal haemoglobin concentration and birth weight.1
Firstly, Steer and colleagues repeatedly refer to the fall in haemoglobin …
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