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Maternal serum pregnancy-associated plasma protein-A and free β-human chorionic gonadotrophin in pregnancies conceived with fresh and frozen-thawed embryos from in vitro fertilization and intracytoplasmic sperm injection |
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| Authors: | Pui Wah Hui Yung Hang Lam Mary Hoi Yin Tang Ernest Hung Yu NG William Shu Biu Yeung Pak Chung Ho |
| Institution: | 1. Department of Obstetrics and Gynaecology, Queen Mary Hospital, Hong Kong;2. Department of Obstetrics and Gynaecology, The University of Hong Kong |
| Abstract: | |
| Keywords: | FET hCG ICSI IVF PAPP-A |