Elena B. Kostova

Amsterdam, NH, Netherlands

Last Updated: 09/26/2026

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Found 23 publications

Recombinant follicle-stimulating hormone (rFSH) versus other recombinant or urinary gonadotropins for ovarian stimulation in assisted reproductive technology cycles.

Recombinant follicle-stimulating hormone (rFSH) versus other recombinant or urinary gonadotropins for ovarian stimulation in assisted reproductive technology cycles.

Journal: The Cochrane database of systematic reviews

Published: July 14, 2026

Septum resection for women of reproductive age with a septate uterus.

Septum resection for women of reproductive age with a septate uterus.

Journal: The Cochrane database of systematic reviews

Published: November 21, 2025

Gonadotropins for ovulation induction in women with polycystic ovary syndrome.

Gonadotropins for ovulation induction in women with polycystic ovary syndrome.

Journal: The Cochrane database of systematic reviews

Published: April 07, 2025

Global maternal mortality associated with SARS-CoV-2 infection: a systematic review and meta-analysis.

Global maternal mortality associated with SARS-CoV-2 infection: a systematic review and meta-analysis.

Journal: BMJ global health

Published: April 02, 2024

Effectiveness and safety of COVID-19 vaccines on maternal and perinatal outcomes: a systematic review and meta-analysis.

Effectiveness and safety of COVID-19 vaccines on maternal and perinatal outcomes: a systematic review and meta-analysis.

Journal: BMJ global health

Published: October 13, 2023

Role of infections in miscarriage.

Role of infections in miscarriage.

Journal: Fertility and sterility

Published: August 18, 2023

COVID-19 in pregnant women: a systematic review and meta-analysis on the risk and prevalence of pregnancy loss.

COVID-19 in pregnant women: a systematic review and meta-analysis on the risk and prevalence of pregnancy loss.

Journal: Human reproduction update

Published: August 03, 2023

Statins for women with polycystic ovary syndrome not actively trying to conceive.

Statins for women with polycystic ovary syndrome not actively trying to conceive.

Journal: The Cochrane database of systematic reviews

Published: July 18, 2023

Obstetric and neonatal outcomes after natural versus artificial cycle frozen embryo transfer and the role of luteal phase support: a systematic review and meta-analysis.

Obstetric and neonatal outcomes after natural versus artificial cycle frozen embryo transfer and the role of luteal phase support: a systematic review and meta-analysis.

Journal: Human reproduction update

Published: October 18, 2022

SARS-CoV-2 positivity in offspring and timing of mother-to-child transmission: living systematic review and meta-analysis.

SARS-CoV-2 positivity in offspring and timing of mother-to-child transmission: living systematic review and meta-analysis.

Journal: BMJ (Clinical research ed.)

Published: March 17, 2022

The effect of hyaluronic acid in embryo transfer media in donor oocyte cycles and autologous oocyte cycles: a systematic review and meta-analysis.

The effect of hyaluronic acid in embryo transfer media in donor oocyte cycles and autologous oocyte cycles: a systematic review and meta-analysis.

Journal: Human reproduction (Oxford, England)

Published: November 29, 2021

Double versus single intrauterine insemination (IUI) in stimulated cycles for subfertile couples.

Double versus single intrauterine insemination (IUI) in stimulated cycles for subfertile couples.

Journal: The Cochrane database of systematic reviews

Published: July 14, 2021

Showing 1-12 of 23

Last Updated: 09/26/2026