fig1
![Robotic surgery of gallbladder cancer](https://image.oaes.cc/9d95761b-7a80-43dc-88ca-8566e239448c/3751.fig.1.jpg)
Figure 1. Sites for placement of trocars: (1) initial incision, robotic instrument and site for specimen extraction; (2) robotic optical system; (3) robotic instrument; (4) robotic instrument; and (5) laparoscopic port for assistant surgeon
Figure 1. Sites for placement of trocars: (1) initial incision, robotic instrument and site for specimen extraction; (2) robotic optical system; (3) robotic instrument; (4) robotic instrument; and (5) laparoscopic port for assistant surgeon
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