Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: The equivalence of hydration status measured by the Fresenius BCM and the Cella Bioimpedance Spectroscopy devices on hemodialysis patients
COVID-19 in Elderly Patients with Acute Kidney Injury
Amplitude-integrated EEG amplitudes differ between wakefulness and sleep states in children
Emergence of the E484K Mutation in SARS-CoV-2 Lineage B.1.1.220 in Upstate New York
Association of depression screening with diagnostic and treatment-related outcomes among youth
Vitamin D and socioeconomic deprivation mediate COVID-19 ethnic health disparities
Single-cell RNA-sequencing reveals predictive features of response to pembrolizumab in Sezary syndrome
Adverse events and their association with comorbidities after first and second doses of Covishield vaccination among healthcare workers of Government owned medical colleges in Kerala
Excess Deaths associated with the COVID-19 Pandemic in Ukraine in 2020
Diagnostic performance of non-invasive fibrosis markers for chronic hepatitis B in sub-Saharan Africa: a Bayesian individual patient data meta-analysis
An observation and restoration model for the COVID-19 incidence curves
Genetic and phenotypic associations between brain imaging, psychopathology and educational attainment in children aged 9-11
Systematic Review and Meta-analysis of Mental Health Impact on BAME Populations with Preterm Birth
Distinct temporal characteristics of circulating alveolar epithelial and endothelial injury markers in ARDS with COVID-19: a preliminary retrospective report
A Review of AI and Data Science Support for Cancer Management
Brain Activation in Chronic Nonspecific Low Back Pain : A Systematic review and ALE Meta-analysis
RISK FACTORS FOR EARLY NATURAL MENOPAUSE: EVIDENCE FROM THE 1958 AND 1970 BRITISH BIRTH COHORTS
Persisting decreases in state and trait anxiety post-psilocybin: A naturalistic, observational study among retreat attendees
Early Antibody Responses Associated with Survival in COVID19 Patients
Mapping SARS-CoV-2 Antibody Epitopes in COVID-19 Patients with a Multi-Coronavirus Protein Microarray
Individual level prediction of emerging suicide events in the pharmacologic treatment of bipolar disorder
Synchronizability predicts effective responsive neurostimulation for epilepsy prior to treatment
Identifying risk factors for COVID-19 severity and mortality in the UK Biobank
Empowering the crowd: Feasible strategies to minimize the spread of COVID-19 in high-density informal settlements
Heterologous Gam-COVID-Vac (Sputnik V) / mRNA-1273 (Moderna) vaccination induces a stronger humoral response than homologous Sputnik V in a real-world data analysis
Serological surveys to estimate cumulative incidence of SARS-CoV-2 infection in adults (Sero-MAss study), Massachusetts, July-August 2020- a mail-based cross-sectional study