Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Using quantitative MRI to track cerebral damage in multiple sclerosis: a longitudinal study
Effective subthalamic and pallidal deep brain stimulation - are we modulating the same network?
A Quick Displacement of the SARS-CoV-2 variant Delta with Omicron: Unprecedented Spike in COVID-19 Cases Associated with Fewer Admissions and Comparable Upper Respiratory Viral Loads
Epidemiology of myocarditis and pericarditis following mRNA vaccines in Ontario, Canada: by vaccine product, schedule and interval
Vaccine hesitancy and reasons for refusing the COVID-19 vaccination among the U.S. public: A cross-sectional survey
HAT-field: a cheap, robust and quantitative point-of-care serological test for Covid-19.
HLA-B27 and not variation in MICA is responsible for genotype by sex interaction in risk of Ankylosing Spondylitis
Vaccination strategies when vaccines are scarce: On conflicts between reducing the burden and avoiding the evolution of escape mutants
Variation in US Drug Overdose Mortality Within and Between Hispanic/Latine Subgroups: A Disaggregation of National Data
Cohort-specific serological recognition of SARS-CoV-2 variant RBD antigens
Rapid replacement of the Beta variant by the Delta variant in South Africa
Predicting the COVID-19 epidemic in Algeria using the SIR model
Changes in symptomatology, re-infection and transmissibility associated with SARS-CoV-2 variant B.1.1.7: an ecological study
Context-specific emergence and growth of the SARS-CoV-2 Delta variant
Mendelian randomization analyses reveal mediating factors of the causal effect of height on coronary artery disease
Timeline of SARS-CoV2 spread in Italy: results from an independent serological retesting
Correlation of SARS-CoV-2 Breakthrough Infections to Time-from-vaccine; Preliminary Study
Logistic regression with machine learning sheds light on the problematic sexual behavior phenotype
Psychedelic mushrooms in the USA: Knowledge, patterns of use and association with health outcomes
The link between autism and sex-specific neuroanatomy, and associated cognition and gene expression
Continued Effectiveness of COVID-19 Vaccination among Urban Healthcare Workers during Delta Variant Predominance
Evaluation and clinical implications of the time to a positive results of antigen testing for SARS-CoV-2
Early versus late third trimester maternal SARS-CoV-2 BNT162b2 mRNA immunization maximizes transplacental antibody transfer and neonatal neutralizing antibody levels
User testing of a Diagnostic Decision Support System with Machine-assisted Chart Review to Facilitate Clinical Genomic Diagnosis
Weakening of the cognition and height association from 1957 to 2018: findings from four British birth cohort studies
Knowledge, attitude, and practices towards COVID-19 among the Rohingya refugees in Coxs Bazar, Bangladesh.