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A report on the interlaboratory quantitation of haemoglobin A2 and haemoglobin F
  1. J. M. White,
  2. S. M. Lewis
  1. Department of Haematology, Royal Postgraduate Medical School, Hammersmith Hospital, London


    An interlaboratory trial of the quantitation of Hb A2 and Hb F has been carried out on two samples of blood by 90 laboratories in the British Isles. The results have been compared with those obtained by four reference laboratories. Overall, the correlation was very poor and indicated that the methods used have to be standardized before interlaboratory values become meaningful. Moreover, in many laboratories the level of Hb A2 in a patient with proven beta thalassaemia was not reported as being increased.

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