TY  - RPRT
TI  - Spinal needle size and hearing.
AU  - D Perks
PY  - 1993
DO  - 10.1111/j.1365-2044.1993.tb07082.x
UR  - https://pubmed.ncbi.nlm.nih.gov/8322999/
ID  - 8322999
ER  -