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Letters Scaly rash on the hands

Defining the fingertip unit

BMJ 2012; 344 doi: (Published 15 May 2012) Cite this as: BMJ 2012;344:e3061
  1. Andrew Y Finlay, dermatologist (retired)1
  1. 1Cardiff University School of Medicine, Cardiff CF14 4XN, UK
  1. finlayay{at}

We agree that the fingertip unit is useful,1 but it covers twice the area of a handprint (adult palm plus fingers), …

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