What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies.
Citation
McDonald, A. M., Knight, R.C., Campbell, M.K., Entwistle, V.A., Grant, A.M., Cook, J.A., Elbourne, D.R., Francis, D., Garcia, J., Roberts, I., and Snowdon, C. (2006) What influences recruitment to randomised controlled trials? A review of trials funded by two UK funding agencies. Trials, 7(9).