Ziebe S
ORCID: 0000-0003-4904-1623
· 5 papers in corpus
other
2026
INTRODUCTION: Global total fertility rates (TFR) are declining by approximately 1% annually due to factors such as increasing use of contraceptives, urbanisation, a shift in social norms, educational and socioeconomic changes among others. …
review
2025
BACKGROUND: Infertility is an underrecognized disease which affects over 17% of the reproductive age population worldwide. However, availability of, and access to, assisted reproductive technology (ART) is variable across countries. There a…
observational
2022
STUDY QUESTION: Is the chance of childbirth, and risk of infertility, pregnancy loss and need for assisted reproduction different for women with asthma compared to women without asthma? SUMMARY ANSWER: Women with asthma had comparable chan…
rct
2020
OBJECTIVE: To compare the ongoing pregnancy rate between a freeze-all strategy and a fresh transfer strategy in assisted reproductive technology treatment. DESIGN: Multicentre, randomised controlled superiority trial. SETTING: Outpatient …
rct
2020
PURPOSE: To evaluate implantation potential of cleavage-stage embryos cultured in medium containing 2 ng/ml granulocyte-macrophage colony-stimulating factor (GM-CSF) versus control medium, according to embryo morphological quality and then …