TY  - RPRT
TI  - A simplified universal needle diaphragm.
AU  - C C DIDCOTT
PY  - 1961
DO  - 10.1111/j.1365-2044.1961.tb13433.x
UR  - https://pubmed.ncbi.nlm.nih.gov/13886223/
ID  - 13886223
ER  -