目的通过对异位妊娠危险发病因素的分析、总结，以进一步明确病因，预防异位妊娠的发生并降低其发生率。
Objective: To make the pathogenesis of ectopic pregnancy clear and guard against ectopic pregnancy by analysing and concluding the risk factors.
目的通过对异位妊娠危险发病因素的分析、总结，以进一步明确病因，预防异位妊娠的发生并降低其发生率。
Objective: To make the pathogenesis of ectopic pregnancy clear and guard against ectopic pregnancy by analysing and concluding the risk factors.
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