TY  - GEN
AU  - Lee,Banghyun
AU  - Park,Tae Chul
AU  - Lee,Hee Joong
TI  - Maternal age and serum concentration of human chorionic gonadotropin in early pregnancy: influence of gonadotropin-releasing hormone
SN  - 1600-0412
PY  - 2015///0429
KW  - Chorionic Gonadotropin, beta Subunit, Human
KW  - blood
KW  - Female
KW  - Fertilization in Vitro
KW  - Humans
KW  - Maternal Age
KW  - Pregnancy
KW  - Pregnancy Trimester, First
N1  - Publication Type: Letter; Comment
UR  - https://doi.org/10.1111/aogs.12573
ER  -