Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: COVID-19: a study about the impact of coronavirus on physicians of La Plata, Argentina
Assessment of Out of Pocket Expenditure and associated factors for availing COVID-19 vaccination by the beneficiaries in Bengaluru: South India
Testing Black-White disparities in biological aging in older adults in the United States: analysis of DNA-methylation and blood-chemistry methods
Safety of praziquantel in persons with and without schistosomiasis: systematic review and meta-analysis
Sensing and decoding the neural drive to paralyzed muscles during attempted movements of a person with tetraplegia using a sleeve array
Determining the Impact of Ethnicity on the Accuracy of Measurements of Oxygen Saturations. A Retrospective Cohort Study
Solar UV B/A Radiation is Highly Effective in Inactivating SARSCoV2
Clinical coding of long COVID in English primary care: a federated analysis of 58 million patient records in situ using OpenSAFELY
Artificial Intelligence for Emotion-Semantic Trending and People Emotion Detection During COVID-19 Social Isolation
Anti-microbial effect of filtered 222nm excimer lamps in a hospital waiting area
Multi-omics identify LRRC15 as a COVID-19 severity predictor and persistent pro-thrombotic signals in convalescence
The emergence of SARS-CoV-2 variant(s) and its impact on the prevalence of COVID-19 cases in Nabatieh region, Lebanon
Long Term Safety and Efficacy of Sub-Lingual Ketamine Troches / Lozenges in Chronic Non-Malignant Pain Management
Osteosarcoma: novel prognostic biomarkers using circulating and cell-free tumour DNA
Design and methodological considerations for biomarker discovery and validation in the Integrative Analysis of Lung Cancer Etiology and Risk (INTEGRAL) Program
Evidence of widespread endemic populations of highly multidrug-resistant  Klebsiella pneumoniae  seen concurrently through the lens of two hospital intensive care units in Vietnam
Sars-CoV-2 attack rate in reception and accommodation centres for asylum seekers: systematic review of outbreak media reports in Germany
Stable IgG-antibody levels in patients with mild SARS-CoV-2 infection
Perceived Quality of Care in Health Centers Affiliated with a Community-Based Health Insurance Scheme in Two Districts of Northeastern Ethiopia: A Multilevel Analysis
The HIV and STI syndemic following mass scale-up of combination HIV interventions in Uganda: a population-based cross-sectional study
Fitting to the UK COVID-19 outbreak, short-term forecasts and estimating the reproductive number
Inhaled Corticosteroids for Outpatients with Covid-19: A Meta-Analysis
Presumptive Multidrug-Resistant Escherichia coli Isolated in Drinking Water and Soil Sources from Kadamaian, Sabah
A third dose of inactivated vaccine augments the potency, breadth, and duration of anamnestic responses against SARS-CoV-2
Genetic and early environmental predictors of adulthood self-reports of trauma
Vaccine serologic responses among transplant patients associate with COVID-19 infection and T peripheral helper cells