%0 Journal Article
%A K. B. Freedman
%A S. Back
%A J. Bernstein
%T Sample size and statistical power of randomised, controlled trials in orthopaedics
%D 2001
%J The Journal of Bone & Joint Surgery British Volume
%P 397-402
%V 83-B
%N 3
%R 10.1302/0301-620X.83B3.0830397
%U https://doi.org/10.1302/0301-620X.83B3.0830397
%K