![Frontiers | Low Luteal Serum Progesterone Levels Are Associated With Lower Ongoing Pregnancy and Live Birth Rates in ART: Systematic Review and Meta-Analyses Frontiers | Low Luteal Serum Progesterone Levels Are Associated With Lower Ongoing Pregnancy and Live Birth Rates in ART: Systematic Review and Meta-Analyses](https://www.frontiersin.org/files/Articles/892753/fendo-13-892753-HTML-r1/image_m/fendo-13-892753-g001.jpg)
Frontiers | Low Luteal Serum Progesterone Levels Are Associated With Lower Ongoing Pregnancy and Live Birth Rates in ART: Systematic Review and Meta-Analyses
![Accuracy of single progesterone test to predict early pregnancy outcome in women with pain or bleeding: meta-analysis of cohort studies | The BMJ Accuracy of single progesterone test to predict early pregnancy outcome in women with pain or bleeding: meta-analysis of cohort studies | The BMJ](https://www.bmj.com/content/bmj/345/bmj.e6077/F5.large.jpg)
Accuracy of single progesterone test to predict early pregnancy outcome in women with pain or bleeding: meta-analysis of cohort studies | The BMJ
![Gestational age-specific normative values and determinants of serum progesterone through the first trimester of pregnancy | Scientific Reports Gestational age-specific normative values and determinants of serum progesterone through the first trimester of pregnancy | Scientific Reports](https://media.springernature.com/lw685/springer-static/image/art%3A10.1038%2Fs41598-021-83805-w/MediaObjects/41598_2021_83805_Fig2_HTML.png)
Gestational age-specific normative values and determinants of serum progesterone through the first trimester of pregnancy | Scientific Reports
![Characterisation of serum progesterone and progesterone-induced blocking factor (PIBF) levels across trimesters in healthy pregnant women | Scientific Reports Characterisation of serum progesterone and progesterone-induced blocking factor (PIBF) levels across trimesters in healthy pregnant women | Scientific Reports](https://media.springernature.com/m685/springer-static/image/art%3A10.1038%2Fs41598-020-59452-y/MediaObjects/41598_2020_59452_Fig1_HTML.png)