%0 Journal Article %A S Eisenstein %T Spondylolysis. A skeletal investigation of two population groups %D 1978 %J The Journal of Bone & Joint Surgery British Volume %P 488-494 %V 60-B %N 4 %R 10.1302/0301-620X.60B4.361744 %U https://doi.org/10.1302/0301-620X.60B4.361744 %K