Randomized controlled trial: Flexible sigmoidoscopy as an adjunct to faecal occult blood testing in population screening.
Steele RJ, Carey FA, Stanners G, Lang J, Brand J, Brownlee LA, Crichton EM, Winter JW, Phull PS, Mowat C, Strachan JA, Digan AM, Fraser CG.
Steele RJ, et al. Among authors: crichton em.
J Med Screen. 2020 Jun;27(2):59-67. doi: 10.1177/0969141319879955. Epub 2019 Nov 5.
J Med Screen. 2020.
PMID: 31690179
Clinical Trial.