Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Silent Hypoxia in Coronavirus disease-2019: Is it more dangerous?-A retrospective cohort study
Transcriptome analysis of PBMCs reveals distinct immune response in the asymptomatic and re-detectable positive COVID-19 patients
Differences in medication reconciliation interventions between six hospitals: a mixed method study
Anemia is a risk factor for rehospitalization after SARS-CoV-2 clearance
Theoretical framework for retrospective studies of the effectiveness of SARS-CoV-2 vaccines
Public attitudes towards COVID-19 vaccines in children: A qualitative study
Characteristics and mechanism of reciprocal ST-segment depression in acute ST segment elevation myocardial infarction
A RCT of a third dose CoronaVac or BNT162b2 vaccine in adults with two doses of CoronaVac
Causes of death in people with cardiovascular disease: a prospective UK Biobank cohort study
Impact of Discoordinated Care on Healthcare Utilization and Survival in Stage IV Non-Small Cell Lung Cancer Patients
COVID-19 first and delta waves in relation to ACEI, ARB, Influenza vaccination, and comorbidity in a North Metropolitan Barcelona Health Consortium
Comparative assessment of methods for short-term forecasts of COVID-19 admissions in England at the local level
The bidirectional causal effects of brain morphology across the life course and risk of Alzheimers disease: A cross-cohort comparison and Mendelian randomization meta-analysis
How are sociodemographic factors associated with 2020/2021 seasonal influenza vaccination behavior under the COVID-19 pandemic?
Severity Prediction for COVID-19 Patients via Recurrent Neural Networks
Saliva-based detection of COVID-19 infection in a real-world setting using reagent-free Raman spectroscopy and machine learning
Targeting Lyn Kinase in Chorea-Acanthocytosis: A Translational Treatment Approach in an Ultra-Rare Disease
Machine Learning to Predict 10-year Cardiovascular Mortality from the Electrocardiogram: Analysis of the Third National Health and Nutrition Examination Survey (NHANES III)
Deviations in Predicted COVID-19 cases in the US during early months of 2021 relate to rise in B.1.526 and its family of variants
Detection of two CAL.20C SARS-CoV-2 variants in Monterrey metropolitan area in Northeast Mexico
Multi-transcriptomic analysis points to early organelle dysfunction in human astrocytes in Alzheimer's disease
Prevalence mapping of Schistosomiasis among Pre-school aged children in Rwanda
Increased hazard of death in community-tested cases of SARS-CoV-2 Variant of Concern 202012/01
Effects of sex hormones on brain GABA and glutamate levels in a cis- and transgender cohort
Functional connectome mediates the association between sleep disturbance and mental health in preadolescence
Estimation of Daily Reproduction Rates in COVID-19 Outbreak.