, 捏Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.
术前
了
泪
小和阻塞部位，选择最佳手术适应证。
成品Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.
术前了泪小和阻塞部位，选择最佳手术适应证。
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