Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: Risk Factors for Delirium in Elderly Patients After Lumbar Spinal Fusion
The Intrathecal Morphine for Percutaneous Endoscopic Lumbar Discectomy (IMPELD) Study: Rationale and Protocol for a Double-blinded Randomized Placebo-controlled Trial
Modeling on Wastewater Treatment Process in Saudi Arabia: a perspective of Covid-19
First-in-clinical application of a time-gated diffuse correlation spectroscopy system at 1064nm using superconducting nanowire single photon detectors
Association between SARS-CoV-2 Transmissibility, Viral Load, and Age in Households
What can data mining tell us about patient safety? Using linear discriminant analysis to identify characteristics associated with positive safety rating in London NHS organisations.
Purifying selection determines the short-term time dependency of evolutionary rates in SARS-CoV-2 and pH1N1 influenza
Improving Fabric Face Masks: Impact of Design Features on the Protection Offered by Fabric Face Masks
Comparative and Integrated Analysis of Plasma Extracellular Vesicles Isolations Methods in Healthy Volunteers and Patients Following Myocardial Infarction
Mesoamerican Nephropathy in Central Panama
Genomic profile in TGCT Mexican patients reveals a potential biomarker of sensitivity to platinum-based therapy.
Time varying association between deprivation, ethnicity and SARS-CoV-2 infections in England: a space-time study
Association of E484K and L452R spike protein mutations with SARS-CoV-2 infection in vaccinated persons---Maryland, January - May 2021
Rapid realist review: Anxiolytic effects of music therapy on mechanically ventilated patients
Double burden of malnutrition and its social disparities among rural Sri Lankan adolescents
Neutralizing response against E484K variant after original SARS-CoV-2 infection
Vaccination-infection interval determines cross-neutralization potency to SARS-CoV-2 Omicron after breakthrough infection by other variants
The Female Predominant Persistent Immune Dysregulation of the Post COVID Syndrome: A Cohort Study
Immunogenicity and safety of a third dose, and immune persistence of CoronaVac vaccine in healthy adults aged 18-59 years: interim results from a double-blind, randomized, placebo-controlled phase 2 clinical trial
Assessing the Impact of Mental Health Difficulties on Young People's Daily Lives: Protocol for a Scoping Umbrella Review of Measurement Instruments
BA.2 evasion of vaccine induced binding and functional non-neutralizing antibodies
Professional practice for COVID-19 risk reduction among health care workers : a Cross-Sectional Study with Matched Case-Control Comparison
COVID-19 vaccine hesitancy and refusal and associated factors in an adult population in Saskatchewan, Canada: Evidence from predictive modelling
Comparative transmission of SARS-CoV-2 Omicron (B.1.1.529) and Delta (B.1.617.2) variants and the impact of vaccination: national cohort study, England
Common and rare variant association analyses in Amyotrophic Lateral Sclerosis identify 15 risk loci with distinct genetic architectures and neuron-specific biology
Immunogenic Amino Acid Motifs and Linear Epitopes of COVID-19 mRNA Vaccines