By Ward David G   Halpin David M G   Seamark David A   in British Journal of General Practice

ISSN:1478-5242|54|507|753-758

Royal College of General Practitioners‎(2004)‎

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By DAVID M G   PIRES E J   BERNAL M A   PEIXOTO J G   DEALMEIDA C E   in British Journal of Radiology

ISSN:0007-1285|85|1013|629-635

British Institute of Radiology‎(2012)‎

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