Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Expression levels of HLA-DRB and HLA-DQ are associated with MHC Class II haplotypes in healthy individuals and rheumatoid arthritis patients
Clinical characteristics of Chilean patients with rheumatic diseases and COVID-19: data from the Covid-19 Global Rheumatology Alliance physician-reported registry
The impact of retracted randomised controlled trials on systematic reviews and clinical practice guidelines: a meta-epidemiological study
Model-based estimation of transmissibility and reinfection of SARS-CoV-2 P.1 variant
Vaccine effectiveness of CanSino (Adv5-nCoV) COVID-19 vaccine among childcare workers -- Mexico, March-December 2021
Potential of machine learning to predict early ischemic events after carotid endarterectomy or stenting: A comparison with surgeon predictions
Google Trends as a method to predict new COVID-19 cases
Investigating causal relations between sleep duration and risks of adverse pregnancy and perinatal outcomes: Linear and nonlinear Mendelian randomization analyses in up to 356,069 European women
Diagnostic accuracy of RT-PCR for detection of SARS-CoV-2 compared to a composite reference standard in hospitalized patients
Macula structural and vascular differences in glaucoma eyes with and without high axial myopia
Occurrence and transmission potential of asymptomatic and presymptomatic SARS-CoV-2 infections: update of a living systematic review and meta-analysis
A combination of variant genotypes at two loci in the APOL1 gene is associated with adverse outcomes in SARS-CoV-2: a UK Biobank study.
Fourth Wave of COVID-19 in India : Statistical Forecasting
Epidemiological waves - types, drivers and modulators in the COVID-19 pandemic
One minute Multiple Pupillary Frequency Tagging test to assess visual field defects
Trends in homelessness and injection practices among young urban and suburban people who inject drugs: 1997-2017
Positive and negative stroke signs revisited: dissociations between synergies, weakness, and impaired reaching dexterity
Prevalence and Factors Associated with Chronic Kidney Disease among Patients Admitted to Medical Ward in a Tertiary Hospital, Northern Ethiopia, a Cross Sectional Study
Grey and white matter micro-structure is associated with polygenic risk for schizophrenia
A Label-Free SARS-CoV-2 Surrogate Virus Neutralization Test and a Longitudinal Study of Antibody Characteristics in COVID-19 Patients
Clonal chromosomal mosaicism and loss of chromosome Y in men are risk factors for SARS-CoV-2 vulnerability in the elderly
On the lag between deaths and infections in the first phase of the Covid-19 pandemic
Trajectories of gene expression, seasonal influenza, and within-host seasonal immunity: transfer value to covid-19
Immunogenic superiority and safety of Biological E CORBEVAX vaccine compared to COVISHIELD (ChAdOx1 nCoV-19) vaccine studied in a phase III, single blind, multicenter, randomized clinical trial
Adherence and sustainability of interventions informing optimal control against COVID-19 pandemic
A Novel Triage Tool of Artificial Intelligence Assisted Diagnosis Aid System for Suspected COVID-19 pneumonia In Fever Clinics