Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Metabolomics and a Breath Sensor Identify Acetone as a Biomarker for Heart Failure
Premature Ventricular Contractions During the Recovery Phase of Exercise Are Only Associated with Increased Cardiovascular Mortality when Present Together with Echocardiographic Abnormalities
COVID-19 mortality risk correlates inversely with vitamin D3 status, and a mortality rate close to zero could theoretically be achieved at 50 ng/ml 25(OH)D3: Results of a systematic review and meta-analysis
Psychometric Properties of a New Stress-Related Personality Scale: The Virtual Inventory of Behavior and Emotions (VIBE)
Real-World Evidence of the Neutralizing Monoclonal Antibody Sotrovimab for Preventing Hospitalization and Mortality in COVID-19 Outpatients
Humoral cross-reactivity towards SARS-CoV-2 in young children with acute respiratory infection with low-pathogenicity coronaviruses
The spatial-temporal risk profiling of Clonorchis sinensis infection in South Korea: A geostatistical modeling study
Soft drinks can be misused to give false false positive SARS-CoV-2 lateral flow device results
The impacts of increased global vaccine sharing on the COVID-19 pandemic; a retrospective modelling study
Spatial patterns of dental disease in patients with low salivary flow
Evaluating growth pattern and assessing future scenario of COVID-19 epidemic of India
Implementation of an in-house real-time reverse transcription-PCR assay for the rapid detection of the SARS-CoV-2 Marseille-4 variant
Longitudinal associations of behavioral problems and text reading skills in school-aged children born term and preterm
Association of Sedentary and Physical Activity Behaviors with Body Composition: a Genome-Wide Association and Mendelian Randomization Study
Genetic Susceptibility Of Cytotoxic T Lymphocyte-Associated Antigen 4 Gene Polymorphism In The Onset Of Arthritis
Medical student residency preferences and motivational factors: a longitudinal, single-institution perspective
Dose-Response Effect of Acupuncture for Melasma: A Prospective Cohort Study in a Tertiary Hospital in Thailand
Evaluation of the ROX index in SARS-CoV-2 Acute Respiratory failure treated with both High-Flow Nasal Oxygen (HFNO) and Continuous Positive Airway Pressure (CPAP)
An ML prediction model based on clinical parameters and automated CT scan features for COVID-19 patients
From SARS and MERS to COVID-19: a review of the quality and responsiveness of clinical management guidelines in outbreak settings
Social network-based strategies for classroom size reduction can help limit outbreaks of SARS-CoV-2 in high schools. A simulation study in classrooms of four European countries
Exon variants associated with asthma and allergy
Assessment of breakthrough infections among post-vaccinated healthcare workers in a Tertiary Dental Hospital in New Delhi, India
NEWS2 and laboratory predictors correlated with clinical deterioration in hospitalised patients with COVID-19
Metabolic Dysfunction-Related Liver Disease as a Risk Factor for Cancer
Origin of HIV/AIDS and Vaccine Failure: Simulation of the Role of the Adjuvant Activation Hypothesis