TY - GEN AU - Zhu,Wenyue AU - Yeung,Queenie AU - Chan,David AU - Chi,Ling AU - Huang,Jin AU - Wang,Qiong AU - Chung,Jacqueline AU - Li,Tin-Chiu TI - Maternal β-HCG concentrations in early IVF pregnancy: association with the embryo development stage of blastocysts SN - 1472-6491 PY - 2020///0427 KW - Adult KW - Blastocyst KW - physiology KW - Chorionic Gonadotropin, beta Subunit, Human KW - blood KW - Embryo Transfer KW - Embryonic Development KW - Female KW - Humans KW - Pregnancy KW - Retrospective Studies N1 - Publication Type: Journal Article UR - https://doi.org/10.1016/j.rbmo.2018.11.035 ER -