%0 Journal Article
%A R Kadziolka
%A M Asztely
%A K Hanai
%A T Hansson
%A A Nachemson
%T Ultrasonic measurement of the lumbar spinal canal. The origin and precision of the recorded echoes
%D 1981
%J The Journal of Bone & Joint Surgery British Volume
%P 504-507
%V 63-B
%N 4
%R 10.1302/0301-620X.63B4.7298673
%U https://doi.org/10.1302/0301-620X.63B4.7298673
%K