@article{doi:10.1302/0301-620X.83B5.0830772b,
author = {GRELSAMER, R. P.},
title = {The sulcus angle and malalignment of the extensor mechanism of the knee},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {83-B},
number = {5},
pages = {772-774},
year = {2001},
doi = {10.1302/0301-620X.83B5.0830772b},
url = {https://doi.org/10.1302/0301-620X.83B5.0830772b}
}