%0 Journal Article %A Peter H. Schurr %T SACRAL EXTRADURAL CYST: AN UNCOMMON CAUSE OF LOW BACK PAIN %D 1955 %J The Journal of Bone & Joint Surgery British Volume %P 601-605 %V 37-B %N 4 %R 10.1302/0301-620X.37B4.601 %U https://doi.org/10.1302/0301-620X.37B4.601 %K