@article{doi:10.1302/0301-620X.50B4.841,
author = {McDougall, A. and Brown, J. Douglas},
title = {RADIOLOGICAL SIGN OF RECURRENT DISLOCATION OF THE PATELLA},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {50-B},
number = {4},
pages = {841-843},
year = {1968},
doi = {10.1302/0301-620X.50B4.841},
url = {https://doi.org/10.1302/0301-620X.50B4.841}
}