Protocol for a pragmatic cluster randomised controlled trial assessing the clinical effectiveness and cost-effectiveness of Electronic RIsk-assessment for CAncer for patients in ge... oleh Gary A Abel, John L Campbell, Martin Pitt, Sarah Gerard Dean, Luke Mounce, Fiona C Warren, Emily Fletcher, Anne Spencer, Raff Calitri, Antonieta Medina-Lara, Elizabeth Shephard, Marijke Shakespeare, Adrian Mercer