主要在比较在第二孕期人工引产的手术或药物方法，包括效果、副作用、不良反应和接受程度。
To compare surgical and medical methods of inducing abortion in the second trimester of pregnancy with regard to efficacy, side effects, adverse events, and acceptability.
近二十多年来，各种产前胎儿性别鉴定技术的不断普及为选择性人工流产、引产提供了技术上的可能。
In the latest twenties years, the uninterrupted popularization of antenatal fetal gender authentication techniques has provided the likelihood for the selectively induced abortion.
中期引产指在妊娠12 - 24周，用人工的办法中止妊娠叫做妊娠中期引产。
In the middle of pregnancy induced labor refers to 12 to 24 weeks, with artificial way to end a pregnancy induced labor called gestation.
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