Dynamic monitoring of serum human chorionic gonadotropin β-subunit levels for early diagnosis of ectopic pregnancy
HUANG Ying-yuan, DENG Min-duan, ZHAO Cui-liu, OU Hai Department of Obstetrics and Gynecology, Guangzhou Red-Cross Hospital/Forth Affiliated Hospital of Jinan University, Guangzhou 510220, China
Journal of Southern Medical University . 2006, (06): 844 -846 .