Bosanquet, K., Adamson, J., Atherton, K., Bailey, D., Baxter, C., Beresford-Dent, J., Birtwistle, J., Chew-Graham, C., Clare, E., Delgadillo, J., Ekers, D., Foster, D., Gabe, R., Gascoyne, S., Haley, L., Hamilton, J., Hargate, R., Hewitt, C., Holmes, J., Keding, A., …Gilbody, S. (in press). CollAborative care for Screen-Positive EldeRs with major depression (CASPER plus): a multicentred randomised controlled trial of clinical effectiveness and cost-effectiveness. NIHR