Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Portable, Low-Field Magnetic Resonance Imaging Sensitively Detects and Accurately Quantifies Multiple Sclerosis Lesions
Evaluating the association between hybrid magnetic resonance positron emission tomography and cardiac-related outcomes in cardiac sarcoidosis
Accuracy of emergency medical service telephone triage of need for an ambulance response in suspected COVID-19: An observational cohort study
Genomic monitoring unveil the early detection of the SARS-CoV-2 B.1.351 lineage (20H/501Y.V2) in Brazil
Exploring support needs of people living with diabetes during the coronavirus COVID-19 pandemic: insights from a UK survey.
Immunogenicity and safety of an inactivated SARS-CoV-2 vaccine (BBV152) in children from 2 to 18 years of age: an open-label, age-de-escalation phase 2/3 study
Risk and mitigation of aerosolisation from lung function testing: results from the AERATOR study.
RT-LAMP has high accuracy for detecting SARS-CoV-2 in saliva and naso/oropharyngeal swabs from asymptomatic and symptomatic individuals
SARS-CoV-2 Epidemiology on a Public University Campus in Washington State
Perioperative antimicrobial prophylaxis in patients receiving antibiotic therapy
Non-pharmaceutical interventions and the emergence of pathogen variants
Differentials and determinants of immunization coverage among children aged 12-36 months in India: Analysis of nationally-representative, population-based survey data
Virlaza Inhibits Sars-COV-2-induced Inflammatory Response of Bronchial Epithelial Cells and Pulmonary Fibroblast
Essential Indicators of Quality in Primary Care Settings: An Evidence-Based, Structured, Expert Approach
Second versus first wave of COVID-19 deaths: shifts in age distribution and in nursing home fatalities
Efficacy of clarithromycin on COVID-19 pneumonia without oxygen administration; protocol for multicenter, open-label, randomized-controlled, 3-armed parallel group comparison, exploratory trial (CAME COVID study)
Dynamics of anti-SARS-CoV-2 seroconversion in individual patients and at the population level
A cross-sectional study of the relationship between exercise, physical activity, and health-related quality of life among Japanese workers during the COVID-19 pandemic
The impact of COVID-19 non-pharmaceutical interventions on the lived experience of people living in Thailand, Malaysia, Italy and the United Kingdom: a cross-country qualitative study
Characteristics and outcomes of an international cohort of 400,000 hospitalised patients with Covid-19
COVID-19 vaccines and evidence-based medicine
How can instructions and feedback with external focus be shaped to enhance motor learning in children? A systematic review
Sex differences in the genetic regulation of the blood transcriptome response to glucocorticoid receptor activation
Toxoplasma gondii  infection and insomnia: a case control seroprevalence study
Whole Exome Sequencing (WES) identifies Homozygous mutation in g.37429732G>A in GRHPR gene is responsible for early onset of nephrolithiasis in the population of West Bengal, India
COVID-19 vaccine hesitancy among Algerian medical students: a cross-sectional study in five universities.