Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: When thinking you are better leads to feeling worse: Self-other asymmetries in prosocial behavior and increased anxiety during the Covid-19 pandemic
Psychosis in Alzheimer's Disease is Associated with Excitatory Neuron Vulnerability and Post-Transcriptional Mechanisms Altering Synaptic Protein Levels
Household Transmission of SARS-COV-2: Insights from a Population-based Serological Survey
Lab-on-a-chip multiplexed electrochemical sensor enables simultaneous detection of SARS-CoV-2 RNA and host antibodies
Age Based Trends for Unplanned Pediatric Rehospitalizations in the United States
Effect of Electronic Nicotine Delivery Systems on Cigarette Abstinence in Smokers with no Plans to Quit: Exploratory Analysis of a Randomized Placebo-Controlled Trial
A reliable and valid measure of COVID-19 patient-reported symptoms in outpatients: the Symptoms Evolution of COVID-19 (SE-C19) instrument
Oral Pre-exposure prophylaxis (PrEP) to prevent HIV: a systematic review and meta-analysis of clinical effectiveness, safety, adherence and risk compensation in all populations
Genetic variation of IFNL4 is associated with COVID-19
SARS-CoV-2 Antibody Testing in Healthcare Workers: a comparison of the clinical performance of three commercially available antibody assays
Deep-sequence phylogenetics to quantify patterns of HIV transmission in the context of a universal testing and treatment trial -- BCPP/ Ya Tsie trial
Cerebrospinal fluid purinomics as a biomarker approach to predict outcome after severe traumatic brain injury
AIBx, Artificial Intelligence Model to Risk Stratify Thyroid Nodules
Beyond Common Outcomes: Clients' Perspectives on the Benefits of Prenatal Care Coordination
Interpreting Changes in Life Expectancy During Temporary Mortality Shocks
Description and clinical validation of a real-time AI diagnostic companion for fetal ultrasound examination
Immunity acquired by a minority active fraction of the population could explain COVID-19 spread in Greater Buenos Aires (June-November 2020)
Poor Working Relationship between Doctors and Hospital Managers: A Systematic Review
Characterization of SARS-CoV-2 genetic structure and infection clusters in a large German city based on integrated genomic surveillance, outbreak analysis, and contact tracing
Parental attitudes towards mandatory vaccination; a systematic review
Logistic advantage of two-step screening strategy for SARS-CoV-2 at airport quarantine
Improving air quality and health in Northern Italy: limits and perspectives
The Contributions of Rare Inherited and Polygenic Risk to ASD in Multiplex Families
Adapting cleft care protocols in low- and middle-income countries during and after COVID-19: a process-driven review with recommendations
Bone health risk assessment in a clinical setting: an evaluation of a new screening tool for active populations
Increasing viral transmission paradoxically reduces progression rates to severe COVID-19 during endemic transition