%0 Journal Article %A F. P. Patterson %T INSTABILITY OF THE UPPER CERVICAL SPINE %D 1973 %J The Journal of Bone & Joint Surgery British Volume %P 456-457 %V 55-B %N 3 %R 10.1302/0301-620X.55B3.456 %U https://doi.org/10.1302/0301-620X.55B3.456 %K