Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Proton pump inhibitor use is not associated with severe COVID-19 related outcomes: A propensity score weighted analysis of a national veteran cohort
A machine learning approach for identification of gastrointestinal predictors for the risk of COVID-19 related hospitalization
Global Monitoring of the Impact of COVID-19 Pandemic through Online Surveys Sampled from the Facebook User Base
Safety and efficacy of a prehospital initiated protocol of nitrates plus non-invasive ventilation on prehospital and Emergency Department outcomes for acute cardiogenic pulmonary oedema
Healthy lifestyle, genetic risk, and incidence of cancer: A prospective cohort study of 13 cancer types
HIV-1 co-infection increases relapse rate and shortens survival in patients with visceral leishmaniasis
Whole-genome sequencing analysis of clozapine-induced myocarditis
Variation in English Covid booster uptake
Predictive and analysis of COVID-19 cases cumulative total;ARIMA model based on machine learning
Multi-method investigation of factors influencing amyloid onset and impairment in three cohorts
Functional Rating Scales in Spinal and Bulbar Muscular Atrophy: A Systematic Review, Meta-Analysis and Critical Appraisal of their Measurement Properties
Pregnancy and risk of COVID-19
A systematic review of persistent symptoms and residual abnormal functioning following acute COVID-19: Ongoing symptomatic phase vs. post-COVID-19 syndrome
High-Resolution Digital Phenotypes from Consumer Wearables Enhance Prediction of Cardiometabolic Risk Markers
Task-Induced Mental Fatigue and Motivation Influence Listening Effort as Measured by the Pupil Dilation in a Speech-in-Noise Task
An extended SIR model with vaccine dynamics for SARS-CoV-2 adaptation rate
Germline rare deleterious variant load alters cancer risk, age of onset and tumor characteristics
Risk factors for SARS-CoV-2 transmission in student residences: a case-ascertained study in Leuven, Belgium from October 2020 until May 2021
A Coupled Experimental and Statistical Approach for an Assessment of the Airborne Infection Risk in Event Locations
Empowering the crowd: Feasible strategies to minimize the spread of COVID-19 in high-density informal settlements
Monitoring and forecasting the COVID-19 epidemic in Moscow: model selection by balanced identification technology - version: September 2021
REACT-1 round 15 interim report: High and rising prevalence of SARS-CoV-2 infection in England from end of September 2021 followed by a fall in late October 2021
Neutralisation of SARS-CoV-2 Delta sub-lineage AY.4.2 and B.1.617.2+E484K by BNT162b2 mRNA vaccine-elicited sera
Changing of therapeutic trends between the 1st and 2nd wave did not reduce COVID-19 related mortality of renal transplant recipients: a national registry study.
Seroprevalence of Chagas in urban and rural indigenous populations of the south of Gran Chaco
Early estimates of SARS-CoV-2 B.1.1.7 variant emergence in a university setting