Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Microbiota long-term dynamics and prediction of acute graft-versus-host-disease in pediatric allogeneic stem cell transplantation
Fat-enlarged Axillary Lymph Nodes are Associated with Node-Positive Breast Cancer in Obese Patients
A Single Drop of Fingerstick Blood for Quantitative Antibody Response Evaluation After SARS-CoV-2 Vaccination
Sporadic, late-onset, and multistage diseases
Development of a Community Orientation Program (COP) as a Community-Based Medical Education method for undergraduate medical students: An experience from India
The prevalence, incidence, prognosis and risk factors for depression and anxiety in a UK cohort during the COVID-19 pandemic
Self-assessment of COVID-19 vaccination efficacy using a simple POCT for SARS-CoV-2 S1 protein antibody IgG-IgM
Effectiveness and durability of protection against future SARS-CoV-2 infection conferred by COVID-19 vaccination and previous infection; findings from the UK SIREN prospective cohort study of healthcare workers March 2020 to September 2021
Association Between HIV PrEP Indications and Use in a National Sexual Network Study of Men Who Have Sex with Men
Age-dependent heterogeneity of lymph node metastases and survival in breast cancer: A population-based study.
Brain connectivity and motor improvements after ballet intervention in multiple sclerosis: pilot
SARS-CoV-2 neutralizing antibodies; longevity, breadth, and evasion by emerging viral variants
Frequency of neurological manifestations in COVID-19: a systematic review and meta-analysis of 350 studies
Femtomolar SARS-CoV-2 Antigen Detection Using the Microbubbling Digital Assay with Smartphone Readout Enables Antigen Burden Quantitation and Dynamics Tracking
COVID-19 vaccinations: perceptions and behaviours in people with primary ciliary dyskinesia
Clinical validation of colorimetric RT-LAMP, a fast, highly sensitive and specific COVID-19 molecular diagnostic tool that is robust to detect SARS-CoV-2 variants of concern
SARS-CoV-2 Antibody Lateral Flow Assay for antibody prevalence studies following vaccine roll out: a Diagnostic Accuracy Study
Genome-wide association study of 1,391 plasma metabolites in 6,136 Finnish men identifies 303 novel signals and provides biological insights into human diseases
Risk Perceptions, Knowledge and Behaviors of General and High-Risk Adult Populations towards COVID-19: A Systematic Scoping Review
Efficacy of Ivermectin in COVID-19 Patients with Mild to Moderate Disease
Coping with COVID-19 Stressors: Adverse and Protective Factors Responding to Emotions in a Chinese Sample
The kinetic variations of anti-nucleocapsid antibody in SARS-CoV-2 infection
Substance abuse and the risk of severe COVID-19: Mendelian randomization confirms the causal role of opioids but hints a negative causal effect for cannabinoids.
Antibody seroprevalence and rate of asymptomatic infections with SARS-CoV-2 in Austrian hospital personnel.
Quantifying transmissibility of COVID-19 and impact of intervention within long-term health care facilities
Longevity of SARS-CoV-2 Antibody in Health Care Workers: 6-Months Follow Up