1. Volume 381, Issue 9873, Pages 1194-1202 (April 2013)
Computed tomographic colonography versus colonoscopy for investigation of patients with symptoms suggestive of colorectal cancer (SIGGAR): a multicentre randomised trial 
Prof Wendy Atkin, PhD, Edward Dadswell, MSci, Kate Wooldrage, MSc, Ines Kralj-Hans, PhD, Christian von Wagner, PhD, Rob Edwards, PhD, Guiqing Yao, PhD, Prof Clive Kay, FRCR, David Burling, FRCR, Omar Faiz, FRCS, Julian Teare, FRCP, Prof Richard J Lilford, FFPHM, Prof Dion Morton, FRCS, Prof Jane Wardle, PhD, Prof Steve Halligan, FRCR 
The Lancet 
Volume 381, Issue 9873, Pages (April 2013)
DOI: /S (12)
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2. Figure 1
Trial profile
*Reasons why patients were not randomised can be found in the appendix. †11 had an alternative whole-colon examination; 19 did not have a whole-colon examination. ‡16 had an alternative whole-colon examination; 64 did not have a whole-colon examination.
The Lancet  , DOI: ( /S (12) )
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3. Figure 2 Additional colonic investigation by sex and age group
*Relative to the mean effect.
The Lancet  , DOI: ( /S (12) )
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