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Clinical application and mechanization of a simple and inexpensive method for estimating T3 uptake in serum
  1. W. W. Walther
  1. Department of Pathology, Whipps Cross Hospital, London


    This very inexpensive method of estimating T3 uptake, already described (Walther, 1971), uses only 0·1 ml of patient's serum and discriminates between thyrotoxicosis and myxoedema much better than the resin sponge method. It can readily be mechanized and the `free thyroxine index' derived has normal limits of 3·0 to 8·0.

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