Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Effectiveness of BNT162b2 and mRNA-1273 COVID-19 vaccines against symptomatic SARS-CoV-2 infection and severe COVID-19 outcomes in Ontario, Canada: a test-negative design study
Parental income gradients in child and adolescent mortality: Norwegian trends over half a century
Statins Are Associated with Improved 28-day Mortality in Patients Hospitalized with SARS-CoV-2 Infection
Learning Where to Look for COVID-19 Growth: Multivariate Analysis of COVID-19 Cases Over Time using Explainable Convolution-LSTM
Evaluation of the ratio of the transverse diameter of cerebellum to the transverse diameter of frontal lobe by trans-cerebellar section
Post operative acute kidney injury in abdominal Surgeries. A retrospective analysis of single center in western India.
The 5-months impact of tozinameran (BNT162b2) mRNA vaccine on kidney transplant and chronic dialysis patients
The impact of seasonal factors on the COVID-19 pandemic waves
GRADING prognostic factors for severe and recurrent Clostridioides difficile infection: expected and unexpected findings. A systematic review.
COVID-19 impact on stroke admissions during France's first epidemic peak: an exhaustive, nationwide, observational study
Rehabilitation clinicians' perspectives of reactive balance training.
Hyaluronan is abundant in COVID-19 respiratory secretions
Brain imaging before and after COVID-19 in UK Biobank
Evidence for a serotonergic subtype of major depressive disorder: A NeuroPharm-1 study.
Distal mediator-enriched, placental transcriptome-wide analyses illustrate the Developmental Origins of Health and Disease
Impact of COVID-19 non-pharmaceutical interventions on pneumococcal carriage prevalence and density in Vietnam
Cell graph neural networks enable digital staging of tumour microenvironment and precisely predict patient survival in gastric cancer
Cost-effectiveness of whole area testing of asymptomatic SARS-CoV-2 infections in Merthyr Tydfil, 2020: A Modelling and economic analysis
Systematic Review and Meta-analysis of Immunomodulator and Biologic Therapies for Treatment of Chronic Pouchitis
Clinical performance characteristics of the Swift Normalase Amplicon Panel for sensitive recovery of SARS-CoV-2 genomes
Correcting B0 inhomogeneity-induced distortions in whole-body diffusion MRI of bone
Polygenic Risk Scores for Prediction of Breast Cancer Risk in Women of African Ancestry: a Cross-Ancestry Approach
Analysis of 200,000 exome-sequenced UK Biobank subjects fails to identify genes influencing probability of developing a mood disorder resulting in psychiatric referral
COVID-19 Vaccine Intentions in the United States, December 2020 to March 2021
Colder and drier winter conditions are associated with greater SARS-CoV-2 transmission: a regional study of the first epidemic wave in north-west hemisphere countries.
Endothelin-1 is Increased in the Plasma of Patients Hospitalized with Covid-19