%0 Journal Article %A B. Ollivere %T The school of hard knocks: trials, registries, and propensity matching %D 2019 %J Bone & Joint 360 %P 1-2 %V 8 %N 1 %R 10.1302/2048-0105.81.360672 %U https://doi.org/10.1302/2048-0105.81.360672 %K