TY  - JOUR
AU  - Porter, RW
AU  - Wicks, M
AU  - Ottewell, D
DO  - doi:10.1302/0301-620X.60B4.711793
UR  - https://doi.org/10.1302/0301-620X.60B4.711793
TI  - Measurement of the spinal canal by diagnostic ultrasound
T2  - The Journal of Bone & Joint Surgery British Volume
VL  - 60-B
IS  - 4
PY  - 1978
SP  - 481
EP  - 484
ER  -