No.30-Contest2020-3D-CTBA导航胸腔镜下精准左上肺尖后段后亚段切除LS1+2b

Please select the category that most closely reflects your concern about the video, so that we can review it and determine whether it violates our Community Guidelines or isn’t appropriate for all viewers. Abusing this feature is also a violation of the Community Guidelines, so don’t do it.