@article{doi:10.1302/0301-620X.58B4.1018040,
author = {Ackroyd, CE and Dinley, RJ},
title = {The locked patella. An unusual complication of haemophilia},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {58-B},
number = {4},
pages = {511-512},
year = {1976},
doi = {10.1302/0301-620X.58B4.1018040},
url = {https://doi.org/10.1302/0301-620X.58B4.1018040}
}