Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: Increase in preterm stillbirths and reduction in iatrogenic preterm births for fetal compromise: a multi-centre cohort study of COVID-19 lockdown effects in Melbourne, Australia
Seroprevalence of SARS-CoV-2 during pregnancy and associated outcomes: results from an ongoing prospective cohort study, New York City
The effect of Arbidol Hydrochloride on reducing mortality of Covid-19 patients: a retrospective study of real world date from three hospitals in Wuhan
Design and user experience testing of a polygenic score report: a qualitative study of prospective users
An automated Dashboard to improve laboratory COVID-19 diagnostics management
Did social factors buffer against the effect of adversities on self-harm during the COVID-19 pandemic? A longitudinal analysis of 49,227 UK adults
Estimating the relative proportions of SARS-CoV-2 strains from wastewater samples
A statistical model of COVID-19 testing in populations: effects of sampling bias and testing errors
Risk of severe COVID-19 from the Delta and Omicron variants in relation to vaccination status, sex, age and comorbidities: surveillance results from southern Sweden
Glycophorin C in atherosclerotic plaque is associated with major adverse cardiovascular events after carotid endarterectomy.
Massive social protests amid the pandemic in selected  Colombian  cities:  Did  they increase COVID-19 cases?
Elevated antibody titers in Abdala vaccinees evaluated by Elecsys(R) anti-SARS-CoV-2 S highly correlate with UMELISA SARS-CoV-2 ANTI RBD, ACE-2 binding inhibition and viral neutralization assays.
International comparison of the impact of the pandemic and vaccination measures adopted on children and adolescent population
Patient experience with healthcare: Feedback for a Post COVID-19 clinic at a tertiary care center in rural area
Essential hypertension is associated with changes in gut microbial metabolic pathways: A multi-site analysis of ambulatory blood pressure
In Vitro Nasal Tissue Model for the Validation of Nasopharyngeal and Mid-turbinate Swabs for SARS-CoV-2 Testing
Outpatient Portal Use in Prenatal Care: Differential Use by Race, Risk, and Area Social Determinants of Health Factors
Direct detection of humoral marker corelates of COVID-19, glycated HSA and hyperglycosylated IgG3, by MALDI-ToF mass spectrometry.
mRNA-1273 but not BNT162b2 induces antibodies against polyethylene glycol (PEG) contained in mRNA-based vaccine formulations
Estimating the elevated transmissibility of the B.1.1.7 strain over previously circulating strains in England using GISAID sequence frequencies
Comparison of Saliva and Mid-Turbinate Swabs for Detection of COVID-19
Faster, Higher, Stronger - Together? A bibliometric analysis of author distribution in top medical education journals
VGsim: scalable viral genealogy simulator for global pandemic
A composite endpoint for acceptability evaluation of oral drug formulations in the pediatric population
Stress-induced changes in inflammatory and atherosclerosis markers during official basketball games in professional coaches
A Warm-start Digital CRISPR-based Method for the Quantitative Detection of Nucleic Acids