Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Temporal trends in hospitalizations and 30-day mortality in older patients during the COVID pandemic from March 2020 to July 2021
Variation in influenza vaccine assessment, receipt, and refusal by the concentration of Medicare Advantage enrollees in U.S. nursing homes
Two years later - changes in abdominal organs: First observations from the UK Biobank longitudinal imaging study
Epidemiology and medical costs of orthopedic conditions in a tertiary hospital in Kenya; A five-year analysis of admission data.
Noninvasive optical monitoring of cerebral blood flow and EEG Spectral responses after Severe Traumatic Brain Injury: A Case Report
The prostate tissue-based telomere biomarker as a prognostic tool for metastasis and death from prostate cancer after prostatectomy
An imperfect tool: contact tracing could provide valuable reductions in COVID-19 transmission if good adherence can be achieved and maintained.
SARS-CoV-2 Omicron Variant Infection of Individuals with High Titer Neutralizing Antibodies Post-3rd mRNA Vaccine Dose
Comparing SARS-CoV-2 natural immunity to vaccine-induced immunity: reinfections versus breakthrough infections
COVID-19 outbreak rates and infection attack rates associated with the workplace: a descriptive epidemiological study
Uptake of COVID-19 vaccines among pregnant women: a systematic review and meta-analysis
Kynurenines Increase MRS Metabolites in Basal Ganglia and Decrease Resting State Connectivity in Frontostriatal Reward Circuitry in Depression
SARS-CoV-2 under an elimination strategy in Hong Kong
Leveraging video data from a digital smartphone autism therapy to train an emotion detection classifier
ProBioQuest: a database and semantic analysis engine for literature, clinical trials, and patents related to probiotics
Concentrations and immunostimulatory potential of cell-free circulating membrane-bound and -unbound mitochondrial DNA in preeclampsia
Investigating trends in those who experience menstrual bleeding changes after SARS-CoV-2 vaccination
Genetic risk factors and Covid-19 severity in Brazil: results from BRACOVID Study
BASELINE METABOLIC PROFILING AND RISK OF DEATH FROM COVID-19
Immune system and blood-brain barrier-wide biomarker analyses provide causal evidence for autoimmunity in dementia
Multispecialty multidisciplinary input into comorbidities in heart failure reduces hospitalisation and clinic attendance
Association of acute kidney injury with the risk of dementia: A meta-analysis protocol
Mortality risks associated with empirical antibiotic activity in E. coli bacteraemia: an analysis of electronic health records
Localized and Whole-Room Effects of Portable Air Filtration Units on Aerosol Particle Deposition and Concentration in a Classroom Environment
Values and preferences of the general population in Indonesia in relation to COVID-19 self-testing: A cross-sectional survey
Trends in underlying causes of death in solid organ transplant recipients between 2010 and 2020: Using the CLASS method for determining specific causes of death