Explore the impact of abnormal coagulation test results on pregnancy complications and perinatal outcomes by establishing the trimester-specific reference intervals of singleton and twin pregnancies

Lin Liu, He S. Yang, Zhengwen Xu, Lanlan Meng, Yifan Lu, Lican Han, Guodong Tang, Jiazi Zeng, Hongyuan Zhu, Yue Zhang, Yanhong Zhai, Shaofei Su, Zheng Cao