Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Adjusting for time of infection or positive test when estimating the risk of a post-infection outcome in an epidemic
Seropositivity of  HBV & HCV  among the Family Members of Chronic Viral Hepatitis Patients
Epidemiological Philosophy of Pandemics
Rare GATA6 variants associated with risk of congenital heart disease phenotypes in 200,000 UK Biobank exomes
A cautionary note on recall vaccination in ex-COVID-19 subjects
Double Mammary In Situ: Predicting Feasibility of Right Mammary Artery In Situ for Circumflex Coronary Artery System
How did COVID-19 measures impact sexual behaviour and access to STI&HIV services in Panama? Results from a national cross-sectional online survey
Symptomatic, Presymptomatic, and Asymptomatic Transmission of SARS-CoV-2
Distinctive modularity and resilience of structural covariance network in first-episode antipsychotic-naive psychoses
Cumulative effects of particulate matter pollution and meteorological variables on the risk of influenza-like illness in Bialystok, Poland
Parapneumonic effusions related to Streptococcus pneumoniae: serotype and disease severity trends
Longitudinal lung function assessment of patients hospitalised with COVID-19 using 1H and 129Xe lung MRI
Impact on Mental Health of students due to restriction caused by COVID-19 pandemic: Cross-sectional study
Intersecting single-cell transcriptomics and genome-wide association studies identifies crucial cell populations and candidate genes for atherosclerosis.
Choice of Intraoperative Ultrasound adjuncts for Brain Tumor Surgery
Survival and outcomes of tocilizumab use in severe and critically ill Covid-19 patients not responding to steroids
Modeling third waves of Covid-19 spread with piecewise differential and integral operators: Turkey, Spain and Czechia
NTRK oncogenic fusions are exclusively associated with the serrated neoplasia pathway in the colorectum and begin to occur in sessile serrated lesions
Small nucleolar RNAs in plasma and their discriminatory power as diagnostic biomarkers of Alzheimer's disease
Racial differences in white matter hyperintensity burden in aging, MCI, and AD
Brain Injury in COVID-19 is Associated with Autoinflammation and Autoimmunity
Attention Deficit and Hyperactivity Disorder and Enuresis co-occurrence in the pediatric population: a systematic review and meta-analysis
The effect of pre-anaesthetic assessment clinic: a systematic review of randomised and non-randomised prospective controlled studies
The effect of antidepressants on severity of COVID-19 in hospitalized patients: A systematic review and meta-analysis
The importance of the population age-structure: insights from Covid-19 dynamics model structured by age, time since infection and acquired immunity
Area-level social and structural inequalities determine mortality related to COVID-19 diagnosis in Ontario, Canada: a population-based explanatory modeling study of 11.8 million people