%0 Journal Article
%A C Blake
%A J Van Der Merwe
%A B Human
%T Ball bearings, a practical way to calibrate digital x rays in arthroplasty
%D 2013
%J Orthopaedic Proceedings
%P 47-47
%V 95-B
%N SUPP_14
%R 10.1302/1358-992X.95BSUPP_14.SAOA2012-047
%U https://doi.org/10.1302/1358-992X.95BSUPP_14.SAOA2012-047
%K General