Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Characterizing the incidence of adverse events of special interest for COVID-19 vaccines across eight countries: a multinational network cohort study
Trends and predictors of Readmissions after Left ventricular assist device
Clinical trial emulation can identify new opportunities to enhance the regulation of drug safety in pregnancy.
Single-Molecule Detection of SARS-CoV-2 by Plasmonic Sensing of Isothermally Amplified Nucleic Acids
SARS-CoV-2 neutralizing antibodies; longevity, breadth, and evasion by emerging viral variants
Development and external validation of the DOAT and DOATS scores: simple decision support tools to identify disease progression among nonelderly patients with mild/moderate COVID-19
Associations between movement behaviors and emotional changes in toddlers and preschoolers during early stages of the COVID-19 pandemic in Chile
Wastewater-based estimation of the effective reproductive number of SARS-CoV-2
B and T cell immune responses elicited by the BNT162b2 (Pfizer BioNTech) COVID-19 vaccine in nursing home residents
Comparison of humoral and cellular responses in kidney transplant recipients receiving BNT162b2 and ChAdOx1 SARS-CoV-2 vaccines
Public Covid-19 X-ray datasets and their impact on model bias - a systematic review of a significant problem
Comparing a new device to measure lung volumes with three traditional methods in individuals with different lung conditions
Comparing SARS-CoV-2 case rates between pupils, teachers and the general population: results from Ger-many
Factors associated with higher levels of grief and support needs among people bereaved during the pandemic: Results from a national online survey
Rett syndrome severity estimation with the BioStamp nPoint using interactions between heart rate variability and body movement
Genome and epigenome wide studies of plasma protein biomarkers for Alzheimer's disease implicate TBCA and TREM2 in disease risk
Tie2 activation protects against prothrombotic endothelial dysfunction in COVID-19
Covid-19: Early evening curfews are not effective and may backfire
Rapid Clinical Screening and Staging for COVID-19 Severe Outcome
COVID Oximetry @home: evaluation of patient outcomes
The Phenome-wide Consequences of Anorexia Nervosa Genes
Persistence of SARS-CoV-2 antibodies and symptoms in an Irish Healthcare Worker (HCW) setting: Results of the COVID Antibody Staff Testing (CAST) Study
COVID-19 infections in day care centres in Germany: Social and organisational determinants of infections in children and staff in the second and third wave of the pandemic
Impact of the COVID-19 pandemic on cognitive function in Japanese community-dwelling older adults in a class for preventing cognitive decline
Dysregulation in EGF/ERBB signaling pathway may explain abnormalities in cellular migration in bipolar disorder in patient-derived neural precursors
Coronavirus disease (COVID-19) associated Mucormycosis: An Anaesthesiologist's Perspective