Wardle, J; von Wagner, C; Kralj-Hans, I; Halloran, SP; Smith, SG; McGregor, LM; Vart, G; ... Raine, R; + view all (2016) Effects of evidence-based strategies to reduce the socioeconomic gradient of uptake in the English NHS Bowel Cancer Screening Programme (ASCEND): four cluster-randomised controlled trials. The Lancet , 387 (10020) pp. 751-759. 10.1016/S0140-6736(15)01154-X. Green open access