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排名必读论文期刊顶会热点AI 简史溯源树小脉星探人才迁徙塔尖人才国防情报追踪开源工具智慧手语
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A multicentre trial on the performance of a two-step triage protocol based on initial serum progesterone and serial hCG used to manage pregnancies of unknown location (PUL)

S. Bobdiwala,E. Christodoulou,J. Farren,N. Mitchell-Jones,C. Kyriacou,M. Al-Memar,F. Ayim, B. Chohan,E. Kirk,O. Abughazza, B. Guruwadahyarhalli,S. Guha,V. Vathanan,C. Bottomley,D. Gould,C. Stalder,D. Timmerman,B. Van Calster,T. Bourne

BJOG-AN INTERNATIONAL JOURNAL OF OBSTETRICS AND GYNAECOLOGY（2019）

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