@article{doi:10.1302/0301-620X.37B4.742-a, author = {Roberts, Norman}, title = {PELVO-SPONDYLITIS OSSIFICANS. Rheumatoid or ankylosing spondylitis. By Ragnar ROMANU5 and Sven Ydén. Karolinska Sjukhuset and King Gustaf V's Research Institute, Stockholm. 11x8¼ in. Pp. 161, with 55 figures. Index. 1955. Copenhagen: Ejnar Munksgaard. Price Dan. kr. 45}, journal = {The Journal of Bone & Joint Surgery British Volume}, volume = {37-B}, number = {4}, pages = {742-743}, year = {1955}, doi = {10.1302/0301-620X.37B4.742-a}, url = {https://doi.org/10.1302/0301-620X.37B4.742-a} }