Bias in identifying and recruiting participants in cluster randomised trials: what can be done?
Eldridge
Sandra
S
Centre for Health Sciences, Barts and the London School of Medicine and Dentistry, Queen Mary, University of London, London E1 2AT.
Kerry
Sally
S
Torgerson
David J
DJ
D015982:Bias; D016000:Cluster Analysis; D010353:Patient Education as Topic; D018579:Patient Selection; D011897:Random Allocation; D016032:Randomized Controlled Trials as Topic / Q000379:methods*; D015983:Selection Bias