The significance of needle gauge
Consideration has not been given to the significance of the larger bore needle (23 gauge) affecting the outcome, seperate to the length of the needle. Surely, to exclude this variable by comparing 25mm x 23 gauge, 25mm x 25 gauge, and 16mm x 25 gauge would possibly clarify the significance of the larger bore needle rather than assume the longer length needle as being the sole variant?
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