, 捏Dacryocystography was preformed in all patients before operation to confirm the obstructive sity and the size of lacrimal sac.
术
以了
泪囊
和阻塞部位，以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.
术以了泪囊和阻塞部位，以选择最佳手术适应证。
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