A safe and simple exposure and Pringle maneuver in laparoscopic anatomical liver resection of segment 7.

"Declarations Ethics approval and consent to participateThis study complies with the standards of the Declaration of Helsinki and current ethical guidelines. The study was approved by the Ethics Committee of the Second Affiliated Hospital of Third Military Medical University (Army Medical University). Informed consent was obtained from individual participant included in the study. Consent for publicationNot applicable. Competing interestsThe authors declare no competing interests. Competing interests The authors declare no competing interests."

"Funding This study was supported by Basic Science and Frontier Technology Research Project of Chongqing Science and Technology Commission (grant number cstc2017jcyjAX0348) and Chongqing Technology Innovation and Application Demonstration (Social and Livelihood General) Project (cstc2018jscx-msybX0043)."