@article{doi:10.1302/0301-620X.88B9.17873,
author = {van Akkooi, A. C. J. and van Geel, A. N. and Bessems, J. H. J. M. and den Bakker, M. A.},
title = {Extra-axial chordoma},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {88-B},
number = {9},
pages = {1232-1234},
year = {2006},
doi = {10.1302/0301-620X.88B9.17873},
url = {https://doi.org/10.1302/0301-620X.88B9.17873}
}