Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Postoperative morbidity after liver resection- A Systemic review, meta-analysis, and metaregression of factors affecting them.
Expert Surgeons and Deep Learning Models Can Predict the Outcome of Surgical Hemorrhage from One Minute of Video
Detection of cognitive decline using a single-channel EEG system with an interactive assessment tool
Do Covid-19 patients needing ICU admission have worse 6 months follow up outcomes when compared with hospitalized non-ICU patients? A prospective cohort study
The consequences of a year of the COVID-19 pandemic for the mental health of young adult twins in England and Wales
Utility of estimated pulse wave velocity for assessing vascular stiffness: comparison of methods
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
Distinct neurostructural signatures of anxiety-, fear-related and depressive disorders: a comparative voxel-based meta-analysis
The role of connectivity on COVID-19 preventive approaches
Detecting cryptic clinically-relevant structural variation in exome sequencing data increases diagnostic yield for developmental disorders
Mass Homicide by Firearm in Canada: Effects of Legislation
Genetic risk factors have a substantial impact on healthy life years
Variation in the reporting of elective surgeries and its influence on patient safety indicators
Older Adults Mount Less Durable Humoral Responses to a Two-dose COVID-19 mRNA Vaccine Regimen, but Strong Initial Responses to a Third Dose
Guillain-Barre Syndrome after COVID-19 Vaccination in the Vaccine Safety Datalink
Design and implementation of an international, multi-arm, multi-stage platform master protocol for trials of novel SARS-CoV-2 antiviral agents: Therapeutics for Inpatients with COVID-19 (TICO/ACTIV-3)
How did COVID-19 measures impact sexual behaviour and access to HIV/STI services in Panama? Results from a national cross-sectional online survey
Comparative performance of between-population allocation strategies for SARS-CoV-2 vaccines.
Cost-effectiveness of psychosocial assessment for individuals who present to hospital following self-harm in England: a model-based retrospective analysis
The Influence of Coronavirus Disease-2019 (COVID-19) On Parkinsons Disease: An Updated Systematic Review
Diagnosing pulmonary tuberculosis using sequence-specific purification of urine cell-free DNA
Differential antibody production by symptomatology in SARS-CoV-2 convalescent individuals
Understanding SARS-CoV-2 Infection and Dynamics with Long Term Wastewater based Epidemiological Surveillance
Estimating the impact of the wMel release program on dengue and chikungunya incidence in Rio de Janeiro, Brazil
Multi-state network meta-analysis of cause-specific survival data
Spatial clustering in vaccination hesitancy: the role of social influence and social selection