Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Characteristics and outcomes of an international cohort of 400,000 hospitalised patients with Covid-19
Fear, Anxiety, Stress, and Depression of novel coronavirus (COVID-19) pandemic among patients and their healthcare workers
Incorporating the Laplacian Filter with a Three-Stream Multi-Channel Convolutional Neural Network for Improved Abnormality Detection in Knee MRIs
Impact of COVID-19 pandemic on use of Pediatric Emergency Health Services in a Tertiary Care Pediatric Hospital in North India
Does Metformin Decrease Mortality in Patients with Type 2 Diabetes Mellitus Hospitalized for COVID-19? A Multivariable and Propensity Score-adjusted Meta-analysis
Lexical and acoustic speech features relating to Alzheimer's disease pathology
A patient satisfaction survey and educational package to improve the care of people hospitalised with COVID-19: an observational study, Liverpool, UK
Application of multilevel linear spline models for analysis of growth trajectories in a cohort with repeat antenatal and postnatal measures of growth: a prospective cohort study
Why were Twitter Users Obsessed with Vitamin D during the first year of the pandemic?
Deep learning-driven risk-based subtyping of cognitively impaired individuals
Genetically personalised organ-specific metabolic models in health and disease
Improved diagnosis of SARS-CoV-2 by using Nucleoprotein and Spike protein fragment 2 in quantitative dual ELISA tests
Secondary infections modify the overall course of hospitalized COVID-19 patients: A retrospective study from a network of hospitals across North India
Associations of Loneliness and Social Isolation with Healthspan and Lifespan in the US Health and Retirement Study
Tissue Stress from Laparoscopic Grasper Use and Bowel Injury in Humans: Establishing Intraoperative Force Boundaries
A biomarker of aging, p16, predicts peripheral neuropathy in women receiving adjuvant taxanes for breast cancer
Accuracy of tongue swab testing using Xpert MTB-RIF Ultra for tuberculosis diagnosis
Effectiveness of mRNA-1273 against SARS-CoV-2 omicron and delta variants
The effect of body image dissatisfaction on goal-directed decision making in a population marked by negative appearance beliefs and disordered eating
Rapid fluoroquinolone resistance detection in Pseudomonas aeruginosa using mismatch amplification mutation assay-based real-time PCR
High frequency and persistence of Anti-DSG2 antibodies in post COVID-19 serum samples
Failure of the choroid plexus in Alzheimer's disease
Transparency and reporting characteristics of COVID-19 randomized controlled trials.
Efficient maternofetal transplacental transfer of anti- SARS-CoV-2 spike antibodies after antenatal SARS-CoV-2 BNT162b2 mRNA vaccination
Founder effect contributes to the unique pattern of SARS-CoV-2 variant B.1.1.519 emergence in Alaska
Racial/ethnic disparities in exposure to COVID-19, susceptibility to COVID-19 and access to health care - findings from a U.S. national cohort