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  1. T J Wilkinson,
  2. B M Colls
  1. Department of Medicine, Christchurch School of Medicine, Princess Margaret Hospital, Private Bag 4727, Christchurch, New Zealand.

    EDITOR, - The paper by the United Kingdom Testicular Cancer Study Group confirmed that undescended testis is a risk factor for germ cell testicular cancer and showed an increased risk with earlier puberty in white men in Britain.1 The postulated model to explain this was based on an increased exposure to pituitary …

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