Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Waning of SARS-CoV-2 booster viral-load reduction effectiveness
The role of childrens vaccination for COVID-19 - Pareto-optimal allocations of vaccines
Neuropsychiatric, cognitive and brain morphology characteristics of conversion from Mild Cognitive Impairment to Alzheimers Disease
Deep learning-based prognosis prediction among preeclamptic pregnancies using electronic health record data
No woman should be left behind: A decomposition analysis of socioeconomic inequalities in unsafe abortion among women presenting for abortion care services in Lusaka and Copperbelt provinces of Zambia
Quality of life and health-related utility after head&neck cancer surgery
COVID-19 Bimodal Clinical and Pathological Phenotypes
Ethical and human subject burdens of trials conducted to evaluate biosimilars
Medical student residency preferences and motivational factors: a longitudinal, single-institution perspective
Successive pandemic waves with more virulent strains, and the effects of vaccination for SARS-CoV-2
COVID-19 risk assessment for the Tokyo Olympic Games
Artificial intelligence enables comprehensive genome interpretation and nomination of candidate diagnoses for rare genetic diseases
Fear and death anxiety among Latin American doctors during the Covid-19 pandemic
Stay Home and Stay Active? The impact of stay-at-home restrictions on physical activity routines in the UK during the COVID-19 pandemic
Impact of Clinical and Genomic Factors on SARS-CoV2 Disease Severity
Characterization of the significant decline in humoral immune response six months post-SARS-CoV-2 mRNA vaccination: A systematic review
XGBoost, a novel explainable AI technique, in the prediction of myocardial infarction, a UK Biobank cohort study
Triangulating Causality Between Childhood Obesity and Neurobehavior: Twin and Longitudinal Evidence
Astrocyte biomarker signatures of amyloid-β and tau pathologies in Alzheimer's disease
Effective connectivity during faces processing in major depression: Distinguishing markers of pathology, risk, and resilience
Performances of community pharmacists and community pharmacies during COVID-19 outbreak: a cross-sectional study
Antibody kinetics to SARS-CoV-2 at 13.5 months, by disease severity
Non-invasive Vagus Nerve Stimulation for Respiratory Symptoms of COVID-19: Results From a Randomized Controlled Trial (SAVIOR I)
Prognostic accuracy of triage tools for adults with suspected COVID-19 in a pre-hospital setting: an observational cohort study
Predictors of uncertainty and unwillingness to receive the COVID-19 booster vaccine: an observational study of 22,139 fully vaccinated adults in the UK
Gut microbiome composition is predictive of incident type 2 diabetes