TY  - RPRT
TI  - No need to modify the Sprotte needle.
AU  - G Sprotte
PY  - 1992
DO  - 10.1111/j.1365-2044.1992.tb04237.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1489059/
ID  - 1489059
ER  -