Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: The impact of vitamin D supplementation on mortality rate and clinical outcomes of COVID-19 patients: A systematic review and meta-analysis
Monitoring of anti-SARS-CoV-2 IgG antibody immune response in infected and immunised healthcare workers in Hungary: a real-world longitudinal cohort study
Discovery of cardiac imaging biomarkers by training neural network models across diagnostic modalities
Knowledge, attitude, and practices regarding COVID-19: A study on food handlers in a joint venture food industry in Dhaka, Bangladesh.
Health-care workers in gastrointestinal endoscopy are at higher risk for SARS-CoV-2 infection compared to other aerosol-generating disciplines
Designing research studies in writer's cramp dystonia: an analysis of automated writing measures
INTERCEPT pathogen reduction of platelet concentrates induces trans-arachidonic acids and affects eicosanoid formation
Coughs, Colds and "Freshers' Flu" Survey in the University of Cambridge, 2007-2008
Is it time to use machine learning survival algorithms for survival and risk factors prediction instead of Cox proportional hazard regression? A comparative population-based study
Prevalence mapping of Schistosomiasis among Pre-school aged children in Rwanda
In-hospital mortality due to breakthrough COVID-19 among recipients of COVISHIELD (ChAdOx nCoV-19) and COVAXIN (BBV152)
Accuracy verification of low-cost CO2 concentration measuring devices for general use as a countermeasure against COVID-19
Vaccine escape in a heterogeneous population: insights for SARS-CoV-2 from a simple model
Constructing germline research cohorts from the discarded reads of clinical tumor sequences
Highly-specific memory B cells generation after the 2nd dose of BNT162b2 vaccine compensate for the decline of serum antibodies and absence of mucosal IgA
Bibliometric study of preclinical, clinical, and public health systematic reviews and meta-analyses in Ethiopia: systematically mapping publication outputs, authors collaboration networks, trending research topics, and influential articles
Serological prevalence of SARS-CoV-2 infection and associated factors in healthcare workers in a "non-COVID" hospital in Mexico City
Altered Brain Responses to Noxious Dentoalveolar Stimuli in High-Impact Temporomandibular Disorder Pain Patients
Access to HIV-prevention in female sex workers in Ukraine between 2009 and 2017: coverage, barriers and facilitators
Evaluation of County-Level Heterogeneity in Excess Mortality in Colorado from March to September 2020
Systemic and Genetic Risk Factors for Reticular Macular Disease and Soft Drusen in Age- Related Macular Degeneration
Prenatal maternal distress during the COVID-19 pandemic and its effects on the infant brain
Diabetes Technology Experiences of Young People Living with Type 1 Diabetes Mellitus and their Parents: Hybrid Theoretical Foundation Guided Analysis
Reduction in COPD exacerbations during COVID-19: a systematic review and meta-analysis
Radius of Gyration as predictor of COVID-19 deaths trend with three-weeks offset
Biophysical mechanisms of electroconvulsive therapy-induced volume expansion in the medial temporal lobe: a longitudinal in vivo human imaging study