Application progress of ultrasound in the assessment of cervix uteri for predicting preterm birth

Sui Zhenhui, Tang Liwei, Zhang Mingzhu, Dong Jingyun, Gao Yanbing
International Medicine and Health Guidance News . 2023, (3): 315 -318 .  DOI: 10.3760/cma.j.issn.1007-1245.2023.03.005

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