Retrospective Study
Copyright ©The Author(s) 2022.
World J Gastrointest Surg. Oct 27, 2022; 14(10): 1120-1130
Published online Oct 27, 2022. doi: 10.4240/wjgs.v14.i10.1120
Figure 1
Figure 1 Long needle and the cap used for the procedure. A: The cap; B: Long needle; C: The injection process.