1.
Clinical observation of effectiveness of mifepristone plus misoprostol on induced abortion at 13~20 weeks of gestation
米非司酮配伍米索前列醇用于13～20周孕引产的效果观察
2.
The human calendar has 260 day cycles. 13 X 20 = 260 days = 9 months = gestation period for a human being.
人类历法有260天为一个周期，13乘以20等于260天等于9个月等于一个人的怀孕时期。
3.
The London conference was held on the 20th anniversary of the launch of the Safe Motherhood Initiative in Kenya.
在倡导《安全孕产倡议》的20周年纪念日之际，伦敦会议在肯尼亚举行。
4.
Ultrasound screening for trisomy 21 syndrome at 11-13~(+6) gestational weeks
超声在孕11-13~(+6)周筛查21-三体综合征中的作用
5.
Ultrasonographic Screening for Trisomy 21 After 11 to 13~(+6) weeks of Gestation
孕11～13~(+6)周超声筛查胎儿21-三体综合征的研究
6.
Premature Birth: Birth less than 37 weeks after conception.
早产:早产为孕期不足37周的分娩。
7.
The application of ultrasound in prenatal diagnosis at the 11-14 weeks of gestation.
11-14孕周超声在产前诊断中的应用
8.
Results:The morphology,the size and the lie of the fetal external ear could be clearly seen after 20 week pregnancy.
结果：胎儿外耳在孕20周以后即可清晰显示其形态、大小及位置。
9.
A Preliminary Study of Fetal Ductus Venosus Flow Waveforms at 10-20 Week Gestation;
正常孕10-20周胎儿静脉导管血流频谱的初步探讨
10.
Maternal Weight,Gestational Factors on the Prenatal Screening of Serum Indicators of the ImPact Study
孕妇体重,孕周因素对产前筛查血清学指标的影响
11.
See page 20 (verb pattern 13).
参看第20页 （动词句型 13）。
12.
By 12 weeks after delivery,all the parameters returned to preconception values.
到产后12周时各项指标均恢复未孕水平。
13.
Prenatal diagnosis value of free fetal DNA in maternal blood
孕妇外周血中胎儿游离DNA在产前诊断中的应用
14.
Association between periodontitis and preterm low birth weight
孕妇牙周炎与新生儿早产低体重的关联
15.
Having an outbreak during pregnancy should not cause abortion or birth deformities.
在怀孕期间的复发不会引起流产或胎儿畸形。
16.
Effect of Mifepristone for Labor Induction of Term Pregnancy on Kidney Tissue in the Maternal Rats and Their Offsprings;
米非司酮用于晚孕引产对母、仔鼠肾组织的影响
17.
Clinical Observation of the Effects of Mifepristone Combined Rivanol on Metaphase Pregnancy Induced Labor
米非司酮联合利凡诺用于中孕引产的疗效观察
18.
The clinical comparison and observation of Dinoprostone to induce labor in term pregnancies
地诺前列酮在足月孕妇引产中的临床对比观察