94
Participants
Start Date
October 31, 2016
Primary Completion Date
January 31, 2017
Study Completion Date
January 31, 2017
two-staged endobronchial blocker insertion
positioning endobronchial blockers in two-staged method
single-staged endobronchial blocker insertion
positioning endobronchial blockers in traditional single-staged method
Seoul National University Hospital, Seoul
Seoul National University Hospital
OTHER