Objective To assess perinatal outcomes and placental findings after in vitro fertilization (IVF)
with an initial low serum β-human chorionic gonadotropin (hCG). Design A retrospective …

The aim of this study was to assess the ability of three individual blastocyst morphology
parameters–expansion and hatching (EH) stage, inner cell mass (ICM) grade and …

STUDY QUESTION The aim of this study was to evaluate the live birth rate (LBR) after frozen–
thawed Day 5 (D5) and Day 6 (D6) blastocyst transfers. SUMMARY ANSWER LBR following …

OBJECTIVE: To determine whether elements of treatment associated with faster doubling
times of total β-hCG in serum (β-t2) in pregnant patients are also associated with a higher …

STUDY QUESTION Is the morphological grading system for blastocysts associated with
perinatal outcomes in women undergoing frozen–thawed single blastocyst transfer (SBT) …

OBJECTIVE: To assess the clinic value of a single maternal serum beta-human chorionic
gonadotropin (2-hCG) assay 11 d after embryo transfer in ART pregnancies and to predict …

Objectives: To determine the prognostic value of beta human chorionic gonadotropin (ß-
hCG) concentration on the sixteenth day after embryo transfer to predict pregnancy outcome …

Purpose The purpose of the study is to compare the newborns weight in singleton term birth
following transfer of thawed blastocysts–frozen on either day 5 or day 6 after in vitro …

Background The 'Freeze all'strategy, which consists of cryopreservation of all embryos after
the ovarian stimulation has undergone extensive development in the past decade. The time …

Background: The availability and use of frozen–thawed embryos after controlled ovarian
hyperstimulation for assisted reproduction have increased with improvements in vitrification …