Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Clinical presentation, disease course and outcome of COVID-19 in hospitalized patients with and without pre-existing cardiac disease: a cohort study across eighteen countries
Agent-Based Simulation for Evaluation of Contact-Tracing Policies Against the Spread of SARS-CoV-2
The Impact of New SARS-CoV-2 Variants on Vaccine Breakthrough: a pilot study on spreading infection in the communities
Ovarian carcinosarcoma is a distinct form of ovarian cancer with poorer survival compared to tubo-ovarian high grade serous carcinoma
Sars-CoV-2 attack rate in reception and accommodation centres for asylum seekers: systematic review of outbreak media reports in Germany
Low dose mRNA-1273 COVID-19 vaccine generates durable T cell memory and antibodies enhanced by pre-existing crossreactive T cell memory
Exploration of alcohol use disorder-associated brain miRNA-mRNA regulatory networks
Genomic Epidemiology of SARS-CoV-2 in Seychelles, 2020-2021
Efficacy and safety of GLP-1 receptor agonists versus SGLT-2 inhibitors in overweight/obese patients with or without diabetes mellitus: a systematic review and network meta-analysis
Effect of the foot-strike pattern on temporal characteristics of sagittal plane knee kinetics and kinematics during the early phase of cutting movements
Healthy diets, lifestyle changes and wellbeing during and after lockdown: Longitudinal evidence from the West Midlands
Paramagnetic rim lesions are associated with pathogenic CSF profiles and worse clinical outcomes in multiple sclerosis: a retrospective cross-sectional study
Plasma P-selectin is an early marker of thromboembolism in COVID-19
Effectiveness of whole virus COVID-19 vaccine at protecting health care personnel against SARS-CoV-2 infections in Lima, Peru
Comprehensive genome-wide association study of different forms of hernia identifies more than 80 associated loci
SGLT2 inhibitors and the risk of diabetic ketoacidosis among adults with Type 2 Diabetes: A systematic review and meta-analysis
Translation and validation of the Cultural Competence Self-assessment Checklist of Central Vancouver Island Multicultural Society for Health Professionals
The impact of malaria-protective red blood cell polymorphisms on parasite biomass in children with severe Plasmodium falciparum malaria
Participatory Research: A Priority Setting Partnership for Chronic Musculoskeletal Pain in Denmark
Neutralising antibody activity against SARS-CoV-2 variants, including Omicron, in an elderly cohort vaccinated with BNT162b2
Daily sampling of early SARS-CoV-2 infection reveals substantial heterogeneity in infectiousness
The Generalizability of Clinical Prediction Models for Patients with Acute Coronary Syndromes: Results from Independent External Validations
Development and Validation of Audio-based Guided Imagery and Progressive Muscle Relaxation Tools for Functional Bloating
A Meta-Analysis of Mental Health among Latino Adults: Elucidating Disparities from Differences
Brainstem evoked auditory potentials in tinnitus: a best-evidence synthesis and meta-analysis
Emergency department utilization and hospitalizations for ambulatory care sensitive conditions among unattached people actively seeking a primary care provider during the COVID-19 pandemic: a retrospective cohort study