Yang AM

OBJECTIVE: This study aims to assess the effects of intrauterine infusion of human umbilical cord blood mononuclear cells (HUCBMCs) on reproductive outcomes in patients with thin endometrium undergoing frozen embryo transfer (FET). DESIGN:…

OBJECTIVE: The aim of this study is to investigate the optimal estradiol (E2) level on the day of gonadotropin-releasing hormone antagonist (GnRH-ant) initiation to maximize the clinical pregnancy rate (CPR) after fresh embryo transfer amon…

OBJECTIVE: To evaluate the pregnancy outcomes of progestin-primed ovarian stimulation (PPOS) protocol for patients with endometrioma underwent in vitro fertilization/intra-cytoplasmic sperm injection embryo transfer (IVF/ICSI-ET). DESIGN: …

Letrozole, an aromatase inhibitor that blocks estrogen synthesis by inhibiting the final step of the estrogen biosynthetic pathway, has been used in the applications of a wide range of infertility settings. It has been more than 20 years si…

OBJECTIVE: To evaluate the risk factors for different types of pregnancy losses after embryo transfer (ET). DESIGN: Retrospective cohort study. SETTING: Reproductive medicine center. PARTICIPANTS: A total of 15,210 pregnancies after fres…

Objective: To reinforce the awareness of colorectal endometriosis (EM) in colonoscopy examination. Methods: Patients diagnosed as colorectal EM at Peking Union Medical College Hospital between February 2002 and February 2017 were enrolled i…