Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: The Epithelial and Stromal Immune Microenvironment in Gastric Cancer: A Comprehensive Analysis Reveals Prognostic Factors with Digital Cytometry
Optimising Early Management of Acute Severe Ulcerative Colitis in the Biologics Era: Admission Model for Intensification of Therapy in Acute Severe Colitis (ADMIT-ASC)
Have news reports on suicide and attempted suicide during the COVID-19 pandemic adhered to guidance on safer reporting? A UK-wide content analysis study
Incidence of COVID-19 reinfection: an analysis of outpatient-based data in the United States of America
Modeling spatiotemporal Aedes aegypti risk in French Guiana using meteorological and remote sensing data
Changes in the quality of cancer care as assessed through performance indicators during the first wave of the COVID-19 pandemic in 2020: a Scoping Review
The idea is to help people achieve greater success and liberty: a qualitative study of expanded methadone take-home access in opioid use disorder treatment
Outcomes following out-of-hours cholecystectomy: A systematic review and meta-analysis
Model-based evaluation of alternative reactive class closure strategies against COVID-19
Ready for Impact? A validity and feasibility study of instrumented mouthguards (iMGs)
Changing patterns of SARS-CoV-2 infection through Delta and Omicron waves by vaccination status, previous infection and neighbourhood deprivation: A cohort analysis of 2.7M people.
Point-of-care ultrasonography for risk stratification of non-critical suspected COVID-19 patients on admission (POCUSCO): a prospective binational study
Projected resurgence of COVID-19 in the United States in July-December 2021 resulting from the increased transmissibility of the Delta variant and faltering vaccination
Mathematical modeling and adequate environmental sampling plans are essential for the public health assessment of COVID-19 pandemics: development of a monitoring indicator for SARS-CoV-2 in wastewater
KAP survey of practicing doctors on antimicrobial stewardship based on openWHO course
Deep phylogenetic-based clustering analysis uncovers new and shared mutations in SARS-CoV-2 variants as a result of directional and convergent evolution
Genetic overlap between Alzheimer's disease and depression mapped onto the brain
Recurring Spatiotemporal Patterns of COVID-19 in the United States
Integrity performance assessment of a Closed System Transfer Device syringe adaptor as a terminal closure for Luer-Lock syringes.
Association of COVID-19 vaccination with risks of hospitalization due to cardiovascular and other diseases: A study of the UK Biobank
Enoxaparin for thromboprophylaxis in hospitalized COVID-19 patients: comparison of 40 mg o.d. vs 40 mg b.i.d. The X-COVID19 Randomized Clinical Trial
Divergent SARS CoV-2 Omicron-specific T- and B-cell responses in COVID-19 vaccine recipients
Vaccine effectiveness against hospital admission in South African health care workers who received a homologous booster of Ad26.COV2 during an Omicron COVID19 wave: Preliminary Results of the Sisonke 2 Study.
An expanded high throughput RT-PCR assay to rapidly identify all known SARS-CoV-2 variants of concern using melting temperature coding.
mRNA vaccination compared to infection elicits an IgG-predominant response with greater SARS-CoV-2 specificity and similar decrease in variant spike recognition
Increasing Trust in Real-World Evidence Through Evaluation of Observational Data Quality