Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Precision MRI Phenotyping Enables Detection of Small Changes in Body Composition for Longitudinal Cohorts
COVID-19 Prognostic Modeling Using CT Radiomic Features and Machine Learning Algorithms: Analysis of a Multi-Institutional Dataset of 14,339 Patients
Hemodynamic Differences Between Women and Men with Elevated Blood Pressure in China: A Non-Invasive Assessment of 45,082 Adults Using Impedance Cardiography
Nanopore Metagenomic Sequencing for Detection and Characterization of SARS-CoV-2 in Clinical Samples
Culture and understanding the role of feedback for health professions students: Realist synthesis protocol.
Impact on Mental Health of students due to restriction caused by COVID-19 pandemic: Cross-sectional study
COVID-19 outbreak rates and infection attack rates associated with the workplace: a descriptive epidemiological study
The U.S. COVID-19 Trends and Impact Survey, 2020-2021: Continuous real-time measurement of COVID-19 symptoms, risks, protective behaviors, testing and vaccination
Identification of transdiagnostic psychiatric disorder subtypes using unsupervised learning
LAMP-BEAC: Detection of SARS-CoV-2 RNA Using RT-LAMP and Molecular Beacons
SARS-CoV-2 Seroprevalence in Tamil Nadu in October-November 2020
A SARS-CoV-2 Delta Variant Containing Mutation in the Probe Binding Region Used for qRT-PCR Test in Japan Exhibited Atypical PCR Amplification and Might Induce False Negative Result
HeAlth System StrEngThening in four sub_Saharan African countries (ASSET) to achieve high-quality, evidence-informed surgical, maternal and newborn, and primary care: protocol for pre-implementation phase studies
Prognostic accuracy of shock index for severe postpartum hemorrhage in high-income country: Protocol for a systematic review and meta-analysis
A Paradoxical Screening Serological Assay for the Diagnosis of Whipple's Disease (infection with Tropheryma whipplei)
Evaluating Semantic Similarity Methods for Comparison of Text-derived Phenotype Profiles
Identifying Online Advice-Seekers for Recovering from Opioid Use Disorder
Post-acute sequelae of COVID-19 and adverse psychiatric outcomes: an etiology and risk systematic review protocol
Community factors and excess mortality in the COVID-19 pandemic in England, Italy and Sweden
The appendix orchestrates T-cell mediated immunosurveillance in colitis-associated cancer
COVID-19 Vaccine Acceptance Among Healthcare Workers in a United States Medical Center
Identifiability and Predictability of Integer- and Fractional-Order Epidemiological Models Using Physics-Informed Neural Networks
Distinct components of cardiovascular health are linked with age-related differences in cognitive abilities
Mapping the human genetic architecture of COVID-19 by worldwide meta-analysis
Effect of vaccination on transmission of COVID-19: an observational study in healthcare workers and their households
Efficacy and safety of baricitinib in patients with COVID-19 infection: Results from the randomised, double-blind, placebo-controlled, parallel-group COV-BARRIER phase 3 trial