Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Epidemiological characteristics and incubation period of SARS-CoV-2 during the 2020-2021 winter pandemic wave in north China: an observational study
Spontaneous clearance of vertically acquired hepatitis c infection: implications for testing and treatment
Survival and outcomes of tocilizumab use in severe and critically ill Covid-19 patients not responding to steroids
A meta-analysis of 20 years of data on people who inject drugs in metropolitan Chicago to inform computational modeling
Modeling the COVID-19 transmission in Italy: The roles of asymptomatic cases, social distancing, and lockdowns
A Molecular network approach reveals shared cellular and molecular signatures between chronic fatigue syndrome and other fatiguing illnesses
Glycated haemoglobin measurements from UK Biobank are different to those in linked primary care records: implications for combining biochemistry data from research studies and routine clinical care
The Association of Opioid Use Disorder and COVID-19 in Shahroud, Iran
CADM2 is implicated in impulsive personality traits by genome- and phenome-wide association studies in humans, with further support from studies of Cadm2 mutant mice
Linking gene expression patterns and brain morphometry to trauma and symptom severity in patients with functional seizures
SARS-CoV-2 pandemic dynamics and infection tracing in Denmark
Visual and refractive status of children with Down's syndrome and nystagmus
LONG TERM PSYCHOLOGICAL CONSEQUENCES OF STROKE (OX-CHRONIC): A LONGITUDINAL STUDY OF COGNITION IN RELATION TO MOOD AND FATIGUE AFTER STROKE: PROTOCOL
Massive Open Online Course (MOOC) Opportunities on Health Education (HE) during of mandatory social isolation context
Integrative analyses identify potential key genes and calcium-signaling pathway in familial AVNRT using whole-exome sequencing
Geospatial Variability in Excess Death Rates during the COVID-19 Pandemic in Mexico: Examining Socio Demographic and Population Health Characteristics
High Speed Photographic Detection of Particle Distribution During Aerosol and Smoke Generating Surgical Procedures: Effects of Surgical Site Evacuation
Current therapeutic trends for tinnitus cure and control: a scoping review
The prevalence of adaptive immunity to COVID-19 and reinfection after recovery, a comprehensive systematic review and meta-analysis of 12 011 447 individuals
Inexpensive multi-patient respiratory monitoring system for helmet ventilation during COVID-19 pandemic
Prevention and Attenuation of COVID-19 by BNT162b2 and mRNA-1273 Vaccines
Long-term ozone exposure and associated cause-specific mortality risks with adjusted metrics by cohort studies: A systematic review and meta-analysis
Detection of SARS CoV-2 contamination in the Operating Room and Birthing Room Setting: Risks to attending health care workers
Cancer and the risk of COVID-19 diagnosis, hospitalisation, and death: a population-based multi-state cohort study including 4,618,377 adults in Catalonia, Spain
Evaluating Adoption, Impact, and Factors Driving Adoption for TREWS, a Machine Learning-Based Sepsis Alerting System
The Remote Assessment of Parkinsonism Supporting Ongoing Development of Interventions in Gaucher Disease - Study Protocol