@article{doi:10.1302/0301-620X.75B3.8496238,
author = {Butt, WP},
title = {Measuring spinal radiographs},
journal = {The Journal of Bone & Joint Surgery British Volume},
volume = {75-B},
number = {3},
pages = {508-508},
year = {1993},
doi = {10.1302/0301-620X.75B3.8496238},
url = {https://doi.org/10.1302/0301-620X.75B3.8496238}
}