Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: The retrospective observational study of clinical outcomes of single dose infusion of warm blood cardioplegia in patients undergoing cardiac surgery
Applying Behavioral Nudges in a Dietary Comparator for Surgical Trials: Developing the MediDiet
A Sleep Disorder Detection Model based on EEG Cross-Frequency Coupling and Random Forest
Cash versus Lotteries: COVID-19 Vaccine Incentives Experiment
An approximate Bayesian approach for estimation of the reproduction number under misreported epidemic data
The unmitigated profile of COVID-19 infectiousness
Perception and awareness of COVID-19 among health science students and staff of Kuwait University: An online cross-sectional study
Persistently high proportions of Plasmodium-infected Anopheles funestus mosquitoes in two villages in the Kilombero valley, south-eastern Tanzania
Acceptability and efficacy of vaginal self-sampling for genital infection and bacterial vaginosis: A large, cross-sectional, non-inferiority trial
Genome-wide association study of liking of physical activity in the UK Biobank
Detection of SARS-CoV-2 Omicron, Delta, Alpha and Gamma variants using a rapid antigen test
The indirect effect of mRNA-based Covid-19 vaccination on unvaccinated household members
DrugWAS: Leveraging drug-wide association studies to facilitate drug repurposing for COVID-19
Adverse reactions to BNT162b2 mRNA COVID-19 vaccine in medical staffs with a history of allergy.
A protocol for the multi-method evaluation of novel externally applied suction-based airway clearance devices in the treatment of foreign body airway obstructions
Serum Vitamin D levels are associated with increased COVID-19 severity and mortality independent of whole-body and visceral adiposity
Adaptive vaccination may be needed to extirpate COVID-19: Results from a runtime-alterable strain-drift and waning-immunity model
Artificial Intelligence Model for Detecting Duodenal Endoscopic Changes on Images of Functional Dyspepsia
Autoantibodies linked to autoimmune diseases associate with COVID-19 outcomes
Characterisation of alcohol polygenic risk scores in the context of mental health outcomes: Within-individual and intergenerational analyses in the Avon Longitudinal Study of Parents and Children
Upregulated miR-200c may increase the risk of obese individuals to severe COVID-19
Normal Tissue Complication Probability (NTCP) prediction model for osteoradionecrosis of the mandible in head and neck cancer patients following radiotherapy: Large-scale observational cohort
Towards environmental detection of Chagas disease vectors and pathogen
Clinical validation of Whole Genome Sequencing for cancer diagnostics
Self-testing and vaccination against COVID-19 to minimize school closure
Broad Clinical Manifestations of Polygenic Risk for Coronary Artery Disease in the Women's Health Initiative