结论应提高医生的操作水平，规范手术操作过程，使宫内节育器在达到避孕效果的同时，又减少其不良事件的发生。
Conclusion We should enhance the manipulation ability and standardize the procedure to decrease the incidence of AEs while getting contraceptive effect.
结论应提高医生的操作水平，规范手术操作过程，使宫内节育器在达到避孕效果的同时，又减少其不良事件的发生。
Conclusion We should enhance the manipulation ability and standardize the procedure to decrease the incidence of AEs while getting contraceptive effect.
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