Background The coronavirus disease 2019 pandemic has had an impact on healthcare
systems around the world with 3 million people contracting the disease and 208,000 cases …

… Author links open overlay panel Justin S. Brandt MD a , Jennifer Hill MD a , Ajay Reddy MD
… Although the results of this study support the CDC’s conclusion, the main findings suggest …

Importance Citation analysis is a bibliometric method that uses citation rates to evaluate
research performance. This type of analysis can identify the articles that have shaped the …

Objective This sequential, prospective meta-analysis sought to identify risk factors among
pregnant and postpartum women with COVID-19 for adverse outcomes related to disease …

OBJECTIVE: Our objective was to characterize the most frequently cited articles published
in obstetrics and gynecology journals during the last 50 years. STUDY DESIGN: We utilized …

Advanced paternal age (APA) is associated with infertility and other reproductive risks.
Studies looking at APA and outcomes have used different paternal age cut‐offs, which has …

Transgender men are assigned female at birth, but self-identify as male. Although some
transgender men undergo gender-affirming hormonal treatment and/or surgery that preclude …

Introduction Despite a growing body of research on the risks of SARS-CoV-2 infection during
pregnancy, there is continued controversy given heterogeneity in the quality and design of …

Background Whether changes in stroke mortality are affected by age distribution and birth
cohorts, and if the decline in stroke mortality exhibits heterogeneity by stroke type, remains …

For many research questions in perinatal epidemiology, gestational age is a mediator that
features the causal pathway between exposure and outcome. A mediator is an intermediate …