@article{doi:10.1302/0301-620X.96B11.34133,
author = {van der Zwaal, P. and Pijls, B. G. and Thomassen, B. J. W. and Lindenburg, R. and Nelissen, R. G. H. H. and van de Sande, M. A. J.},
title = {The natural history of the rheumatoid
shoulder},
journal = {The Bone & Joint Journal},
volume = {96-B},
number = {11},
pages = {1520-1524},
year = {2014},
doi = {10.1302/0301-620X.96B11.34133},
url = {https://doi.org/10.1302/0301-620X.96B11.34133}
}