%0 Journal Article %A RW Porter %A W Park %T Unilateral spondylolysis %D 1982 %J The Journal of Bone & Joint Surgery British Volume %P 344-348 %V 64-B %N 3 %R 10.1302/0301-620X.64B3.7096402 %U https://doi.org/10.1302/0301-620X.64B3.7096402 %K