Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Using a novel echo-marker to identify high mortality risk patients with moderate aortic stenosis
Modern UNOS Data Reveals Septuagenarians have Inferior Heart Transplant Survival
COVID-19 test positivity: predictive value of various symptoms in a large community-based testing program in California
Knowledge, attitudes and perceptions towards COVID-19 vaccinations: a cross-sectional community survey in Bangladesh
Characterization of patients that can continue conservative treatment for adenomyosis
Feasibility, usability and acceptability of a novel digital hybrid-system for reporting of routine health information in Southern Tanzania A mixed-methods study
Impact of unequal cluster sizes for GEE analyses of stepped wedge cluster randomized trials with binary outcomes
Unmasking Seasonal Cycles in Human Fertility: How holiday sex and fertility cycles shape birth seasonality
Poking COVID-19: insights on genomic constraints among immune-related genes between Qatari and Italian populations
The maladaptive vascular response in COVID-19 acute respiratory distress syndrome and recovery
Patterns of physical activity among the students of an Indian university and their perceptions about the curricular content concerned with health
Stress-induced changes in inflammatory and atherosclerosis markers during official basketball games in professional coaches
A systematic review of enteric pathogens and antibiotic resistance genes in outdoor urban aerosols
Inexpensive workflow for simultaneous monitoring of HIV viral load and detection of SARS-CoV-2 infection
Vaccinated and unvaccinated individuals have similar viral loads in communities with a high prevalence of the SARS-CoV-2 delta variant
KAP survey of practicing doctors on antimicrobial stewardship based on openWHO course
COVID-19 case definitions, diagnostic testing criteria, and surveillance across the pandemic's 25 highest burden countries
Agile design and development of a high throughput cobas(R) SARS-CoV-2 RT-PCR diagnostic test
Hospital mortality in COVID-19 patients in Belgium treated with statins, ACE inhibitors and/or ARBs
Socioeconomic, demographic and environmental factors inform intervention prioritization in urban Nigeria
Vaccine Approvals and the Role of the FDA Vaccine Advisory Committee, 2000-2019
Time-dependent heterogeneity leads to transient suppression of COVID-19 epidemic, not herd immunity
Environmental drivers of SARS-CoV-2 lineage B.1.1.7 transmission intensity
Timeliness of reporting of SARS-CoV-2 seroprevalence results and their utility for infectious disease surveillance
Medical genetics workforce in Brazil: practitioners, services, and disease distribution
Individual Symptom Severity in Adult Autism Spectrum Disorder Predicts Reduction in Right Dorsal Stream Neural Activity During Live Eye-to-Eye Contact