Intended for healthcare professionals

Letters Proton beam therapy for cancer

Randomised controlled trials of proton beam therapy are needed

BMJ 2012; 344 doi: (Published 08 May 2012) Cite this as: BMJ 2012;344:e3193
  1. Ian H Kunkler, consultant in clinical oncology1
  1. 1Edinburgh Cancer Centre, Edinburgh EH4 2XU, UK
  1. i.kunkler{at}

Epstein questions whether the investment of £250m (€307m; $405m) in two NHS UK proton facilities is premature.1 The ability of protons to confine the high dose volume to the tumour while minimising the dose to adjacent normal tissues is theoretically attractive in, for example, selected paediatric intracranial tumours, skull …

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