Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Effect of Ozone on Allergic Airway Inflammation
Increased Long-Term Mortality in Patients Admitted to the Intensive Care Unit with Health-Care Associated Pneumonia
Evaluation of the United States COVID-19 Vaccine Allocation Strategy
Pre- and post-operative psychological interventions to prevent pain and fatigue after breast cancer surgery (PREVENT): a randomized controlled trial
Evaluation of the specificity and accuracy of SARS-CoV-2 rapid antigen self-tests compared to RT-PCR from 1015 asymptomatic volunteers
Cost-effectiveness of Stockholm3 test and magnetic resonance imaging in prostate cancer screening: a microsimulation study
Improving executive, behavioural and socio-emotional competences in very preterm young adolescents through a mindfulness-based intervention: study protocol and feasibility
Is the infection of the SARS-CoV-2 Delta variant associated with the outcomes of COVID-19 patients?
Cardiovascular disease biomarkers derived from circulating cell-free DNA methylation
Multiplex PCR Assays for Identifying All Major SARS-CoV-2 Variants
Accuracy of US CDC COVID-19 Forecasting Models
Clinical Performance of the cobas Liat SARS-CoV-2 & Influenza AB for the Detection of SARS-CoV-2 in Nasal Samples
Integrated genomic and histopathological analysis of low grade serous ovarian carcinoma identifies clinically distinct disease subtypes
Nationwide Seroprevalence of SARS-CoV-2 in Saudi Arabia
Population immunity to SARS-CoV-2 in US states and counties due to infection and vaccination, January 2020-November 2021
London Ramadan Fasting Study (LORANS): Rationale, design, and methods
Behavioral nudges increase COVID-19 vaccinations: Two randomized controlled trials
Proof-of-concept pilot study on comprehensive spatiotemporal intra-patient heterogeneity for colorectal cancer with liver metastasis
International attitudes on COVID-19 vaccination: repeat national cross-sectional surveys across 15 countries
Estimation of the Reproduction Number for COVID-19 Based on Latest Vaccination Results and the Timing for Herd-Immunity: Prospect for 2021
Heterogeneity in testing for infectious diseases
Dietary patterns among 13 - 17-years old school adolescents: A national comparison of the three geographical regions in Bolivia
Tocilizumab and mortality in hospitalised patients with covid-19. A systematic review comparing randomised trials with observational studies
Occupational risks of COVID-19 in NHS workers in England
COVID Testing in the Workplace: Return to Work Testing in an Occupational Cohort
Vegetable intake and metabolic risk factors: A Mendelian randomization study