Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Trends in National Opioid Prescribing for Dental Procedures among Medicaid Patients
Gender Differences in Caries and Periodontal Status in UK Children
Increased prevalence and clinical impact of hypocalcaemia in severe COVID-19 distinguishes it from other forms of infective pneumonia
Efficacy and safety of tocilizumab in the management of COVID-19: A systematic review and meta-analysis of observational studies
COVID-19 vaccine hesitancy and refusal and associated factors in an adult population in Saskatchewan, Canada: Evidence from predictive modelling
Comparing COVID-19 and influenza presentation and trajectory
SARS-CoV-2 Infection Breakthrough among the non-vaccinated and vaccinated: a Real World Evidence study based on Big Data
Accuracy of US CDC COVID-19 Forecasting Models
Identifying Clinical Risk Factors for Opioid Use Disorder using a Distributed Algorithm to Combine Real-World Data from a Large Clinical Data Research Network
Preterm birth increases placental expression of multidrug resistance (MDR) transporters irrespective of prepregnancy body mass index (BMI)
Testing the Triple Network Model of Psychopathology in a Transdiagnostic Neurodevelopmental Cohort
Serum asymmetric dimethyl arginine level correlates with the progression and prognosis of amyotrophic lateral sclerosis
Insights from an autism imaging biomarker challenge: promises and threats to biomarker discovery
A systematic review of observational methods used to quantify personal protective behaviours among members of the public during the COVID-19 pandemic, and the concordance between observational and self-report measures in infectious disease health protection
Significant Sparse Polygenic Risk Scores across 813 traits in UK Biobank
Estimates of excess mortality for the five Nordic countries during the Covid-19 pandemic 2020-2021
Assessing Knowledge, Attitudes, and Practices towards Causal Directed Acyclic Graphs among Epidemiologists and Medical Researchers: a qualitative research project
Comparing SARS-CoV-2 case rates between pupils, teachers and the general population: results from Germany
Serum Neutralizing Activity of mRNA-1273 Against the SARS-CoV-2 B.1.1.529 (Omicron) Variant: A Preliminary Report
Consensus based framework for digital mobility monitoring
Interpreting vaccine efficacy trial results for infection and transmission
Photoreceptor layer thinning is an early biomarker for age-related macular degeneration development: Epidemiological and genetic evidence from UK Biobank optical coherence tomography data
SARS-CoV-2 variant dynamics across US states show consistent differences in effective reproduction numbers
Extending upon: What effect might border screening have on preventing importation of COVID-19 compared with other infections? - Considering the additional effect of post-arrival isolation
No safe level of alcohol consumption for brain health: observational cohort study of 25,378 UK Biobank participants
Self-Reliance, Social Norms, and Self-Stigma as Barriers to Psychosocial Help Seeking Among Rural Cancer Survivors with Cancer-Related Distress