It indicates that bollon dilator has good long term effectiveness for postoperative anastomotic stricture.
It indicates that bollon dilator has good long term effectiveness for postoperative anastomotic stricture.
结果显效率为87.8%，且无复发，远期疗效甚佳。
It indicates that bollon dilator has good long term effectiveness for postoperative anastomotic stricture.
结果显效率为87.8%，且无复发，远期疗效甚佳。