Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: The clinical impact of maternal COVID-19 on mothers, their infants, and placentas with an analysis of vertical transfer of maternal SARS-CoV-2-specific IgG antibodies
The relationship between wild-type transthyretin amyloid load and ligamentum flavum thickness in lumbar stenosis patients
A pilot randomised prospective comparison of two approaches for tibial nailing using clinical and novel imaging outcome measures - study protocol
The Challenges of Episodic Office-based Blood Pressure Measurement for the Management of Hypertension
Accounting for health inequities in the design of contact tracing interventions: a rapid review
Epidemiological differences in the impact of COVID-19 vaccination in the United States and China
The French Covid-19 vaccination policy did not solve vaccination inequities: a nationwide longitudinal study on 64.5 million individuals
OMICRON-ASSOCIATED CHANGES IN SARS-COV-2 SYMPTOMS IN THE UNITED KINGDOM
Doctors and Nurses Social Media Ads Reduced Holiday Travel and COVID-19 infections: A cluster randomized controlled trial in 13 States
Defining factors that influence vaccine-induced, cross-variant neutralizing antibodies for SARS-CoV-2 in Asians
Quality-adjusted life expectancy norms for the English population
Genetic and environmental regulation of caudate nucleus transcriptome: insight into schizophrenia risk and the dopamine system
Age-specific rate of severe and critical SARS-CoV-2 infections estimated with multi-country seroprevalence studies
Hearing aids reduce daily-life fatigue and increase social activity: a longitudinal study
Characterisation of type 2 diabetes subgroups and their association with ethnicity and clinical outcomes: a UK real-world data study using the East London Database
Latent Factors of Language Disturbance and Relationships to Quantitative Speech Features
Temporal stability of the ventral attention network and general cognition along the Alzheimer's disease spectrum
Gait stability in ambulant children with cerebral palsy during dual tasks
Making an equal system equitable: Proposing a sex-adjusted MELDNa score for liver transplantation allocation
Social, economic, and environmental factors influencing the basic reproduction number of COVID-19 across countries
Automated diagnosis of atrial fibrillation in 24-hour Holter recording based on deep learning：a study with randomized and real-world data validation
Heterozygous and homozygous variants in STX1A cause a neurodevelopmental disorder with or without epilepsy
TOWARDS A SINGLE PARAMETER FOR THE ASSESSMENT OF EEG OSCILLATIONS
Vaccine effectiveness against SARS-CoV-2 infection with the Omicron or Delta variants following a two-dose or booster BNT162b2 or mRNA-1273 vaccination series: A Danish cohort study
Elderly acceptance of telemedicine use in Hong Kong during and after the COVID-19 pandemic: a cross-sectional cohort survey
Multi-level Predictors of Depression Symptoms in the Adolescent Brain Cognitive Development (ABCD) Study