Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Effectiveness of BNT162b2 and mRNA-1273 COVID-19 boosters against SARS-CoV-2 Omicron (B.1.1.529) infection in Qatar
SARS-CoV-2 re-infection risk in Austria
Decreased door-to-balloon time in patients with ST-segment elevation myocardial infarction during the early COVID-19 pandemic in South Korea - an observational study
NeMoR: a New Method Based on Data-Driven for Neonatal Mortality Rate Forecasting
The Michigan Genomics Initiative: a biobank linking genotypes and electronic clinical records in Michigan Medicine patients
The Acute Effects of Physical Exercise Breaks on Cognitive Function During Prolonged Sitting: A First Quantitative Evidence
Trans-ancestry genome-wide analysis of atrial fibrillation provides new insights into disease biology and enables polygenic prediction of cardioembolic risk
The organisation of nurse staffing in intensive care units: a qualitative study
Safety and Effectiveness of COVID-19 SPUTNIK V Vaccine in Dialysis Patients
Primary school staff perspectives of school closures due to COVID-19, experiences of schools reopening and recommendations for the future: a qualitative survey in Wales
The 3p21.31 genetic locus promotes progression to type 1 diabetes through the CCR2/CCL2 pathway
Classifying chronic pain using multidimensional pain-agnostic symptom assessments and clustering analysis
Trait, staging, and state markers of psychosis based on functional alteration of salience-related networks in the high-risk, first episode, and chronic stages
The MultimorbiditY COllaborative Medication Review And DEcision Making (MyComrade) study: A protocol for a cross-border pilot cluster randomised controlled trial.
Examining SARS-CoV-2 Interventions in Residential Colleges Using an Empirical Network
Two year data from a preliminary study of double lesion site MRgFUS treatment of Essential Tremor targeting the thalamus and the posterior subthalamic area.
Gaseous micro-embolism (GME) is associated with systemic inflammatory response syndrome (SIRS) after open heart surgery. A missing piece of a complex puzzle?
Accessing Medical Care for Infertility: A Study of Women in Mexico
Plaque Contact Surface Area and Flow Lumen Volume Predict Stroke Risk in Extracranial Carotid Artery Stenosis
Persistence of immune response in health care workers after two doses BNT162b2 in a longitudinal observational study
Threshold concepts in medical education: A scoping review protocol
Higher Hospitalization and Mortality Rates Among SARS-CoV-2 infected Persons in Rural America
Mapping of SARS-CoV-2 Brain Invasion and Histopathology in COVID-19 Disease
Predicting vaccine hesitancy from area-level indicators: A machine learning approach
An Integrated Molecular Atlas of Alzheimer's Disease
Clustering of patient comorbidities within electronic medical records enables high-precision COVID-19 mortality prediction