Background Placental anomalies (placenta praevia, placental abruption, morbidly adherent
placenta and cord insertion anomalies) are associated with maternal and fetal morbidity and …

OBJECTIVE: To determine whether elective single embryo transfer (eSET) lowers the risk of
poor perinatal outcomes associated with IVF, when [1] compared with double embryo …

Abstract Background: Assisted reproductive technologies (ARTs) have made great progress.
However, whether tube baby born after ART were at an increased risk of birth defects is not …

BACKGROUND Adverse obstetric outcomes in pregnancies achieved through assisted
reproductive technology (ART) could either be due to the technology or to the underlying …

Objective: To determine whether the incidence of adverse obstetric outcomes is higher in
singleton pregnancies achieved by in vitro fertilization (IVF) than in spontaneously …

OBJECTIVE: To estimate whether singleton pregnancies following in vitro fertilization (IVF)
are at higher risk of perinatal mortality, preterm delivery, small for gestational age, and low or …

Background: With the development of assisted reproductive technology (ART) and its
increasing success rate in the mainland of China, more attention has been paid to the safety …

OBJECTIVE: To compare obstetric and perinatal outcomes of singleton births after assisted
reproductive technology (ART) with blastocyst transfer (days 5 to 6) versus nonblastocyst …

BACKGROUND Approximately 18% of multiple births in the USA result from assisted
reproduction technology (ART). Although many studies comparing ART and naturally …

Highlights•During ART treatment, gametes and embryos are exposed to non-physiological
processes.•The short-and long-term safety of assisted reproduction is of concern.•There is …