Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: COVID-19 Classification of X-ray Images Using Deep Neural Networks
Imaging cortical multiple sclerosis lesions with ultra-high field MRI
Willingness to volunteer of medical students during the COVID-19 pandemic: Assessment at a tertiary care hospital in India
Association of lipid-lowering drugs with COVID-19 outcomes: A Mendelian Randomization study
Gene expression signatures identify biologically and clinically distinct tuberculosis endotypes
Circulating Low Density Neutrophils Mediate Resistance to First Line Anti-PD1/PDL1 Immunotherapy in Non-Small Cell Lung Cancer
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
Quantitative SARS-CoV-2 viral-load curves in paired saliva and nasal swabs inform appropriate respiratory sampling site and analytical test sensitivity required for earliest viral detection
The effect of COVID-19 vaccination in Italy and perspectives for 'living with the virus'
Clinical validity of single-gene non-invasive prenatal testing for sickle cell disease and beta thalassemia
Point-of-care sample preparation and automated quantitative detection of Schistosoma haematobium using mobile phone microscopy
Administration approaches of nursing assistants in hospitals: a scoping review
Vitamin D deficiency and its association with iron deficiency in African children
Analytic approaches to clinical validation of results from preclinical models of glioblastoma: a systematic review
Effects of the COVID-19 Pandemic on Park Use in U.S. Cities
The military as a neglected pathogen transmitter, from the 19th century to COVID-19: A systematic review
Understanding the impact of high-risk human papillomavirus on oropharyngeal squamous cell carcinomas in Taiwan: A retrospective cohort study
Cancer services during the COVID-19 pandemic: systematic review of patients' and caregivers' experiences
Listening to older voices: results of a cross-sectional survey of older patient-reported experiences of facility-based healthcare in Nouna, Burkina Faso
Factors affecting aerosol size distribution during various dental procedures
The serological diversity of serum IgG/IgA/IgM against the SARS-CoV-2 nucleoprotein, spike, and receptor-binding domain and neutralizing antibodies in patients with COVID-19 in Japan
Force of infection: A determinant of vaccine efficacy?
A quantitative risk-benefit analysis of ChAdOx1 nCoV-19 vaccine among people under 60 in Italy
Low Vision Rehabilitation Training and Referral Patterns Among Ophthalmologists
Viral kinetic modeling and clinical trial simulation predicts disruption of respiratory disease trials by non-pharmaceutical COVID-19 interventions
Association of Obesity with COVID-19 Severity and Mortality: A Systemic Review and Meta-Regression