1. A randomized controlled trial comparing single-incision laparoscopic cholecystectomy using a novel instrument to that using a common instrument 
Lei Zhao, Zhifei Wang, Jun Xu, Yunwei Wei, Yinghui Guan, Chunfu Liu, Lishan Xu, Chang Liu, Bo Wu 
International Journal of Surgery 
Volume 32, Pages (August 2016)
DOI: /j.ijsu
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2. Fig. 1
The novel laparoscopic instrument, which has an adjustable and rotatable wrist.
International Journal of Surgery  , DOI: ( /j.ijsu )
Copyright © 2016 IJS Publishing Group Ltd Terms and Conditions

3. Fig. 2
Exposing Calot's triangle with the novel laparoscopic instrument, which has an adjustable and rotatable wrist.
International Journal of Surgery  , DOI: ( /j.ijsu )
Copyright © 2016 IJS Publishing Group Ltd Terms and Conditions