TY  - JOUR
AU  - Blake, C
AU  - Van Der Merwe, J
AU  - Human, B
DO  - doi:10.1302/1358-992X.95BSUPP_14.SAOA2012-047
UR  - https://doi.org/10.1302/1358-992X.95BSUPP_14.SAOA2012-047
TI  - Ball bearings, a practical way to calibrate digital x rays in arthroplasty
T2  - Orthopaedic Proceedings
VL  - 95-B
IS  - SUPP_14
PY  - 2013
SP  - 47
EP  - 47
ER  -