Routine first-trimester ultrasound screening using a standardized anatomical protocol

Liao, YM; Wen, HX; Ouyang, SY; Yuan, Y; Bi, JR; Guan, Y; Fu, Q; Yang, X; Guo, WJ; Huang, Y; Zeng, Q; Qin, Y; Xiang, HS; Li, SL

AMERICAN JOURNAL OF OBSTETRICS AND GYNECOLOGY, 2021; 224 (4):

Abstract

BACKGROUND: First-trimester ultrasound scans were introduced to China for nearly 20 years. The ability of first-trimester ultrasound screening to dete......

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