Dilation was easier when performed between days 3 and 5.The fistulae began cicatrized at 7 days post-PTCD, making it difficult to be dilated.
3、5d时扩张比较容易，
7天瘘道开始瘢痕化，扩张比较困难。
Dilation was easier when performed between days 3 and 5.The fistulae began cicatrized at 7 days post-PTCD, making it difficult to be dilated.
3、5d时扩张比较容易，7天瘘道开始瘢痕化，扩张比较困难。
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