淮北市19 630名妊娠中期孕妇唐氏筛查结果分析
周侠
Analysis of Down's screening results of 19 630 pregnant women in the second trimester of pregnancy in Huaibei City
ZHOU Xia
安徽预防医学杂志 . 2020, (3): 212 -215 .  DOI: 10.19837/j.cnki.ahyf.2020.03.014