Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Retrospective screening for SARS-CoV-2 among 5,800 hospitalizations related to influenza-like illness during the 2018-19 pre-pandemic and 2019-2020 pandemic influenza seasons in the VAHNSI network, Spain.
Predictors of mortality, ICU admission and intubation among hospitalized COVD-19 patients in Jordan.
A randomized placebo-controlled clinical trial of Nicotinamide Riboside and Pterostilbene supplementation in experimental muscle injury in elderly subjects
Telehealth versus Self-Directed Lifestyle Intervention to Promote Healthy Blood Pressure: a Randomized Controlled Trial
Who funded the research behind the Oxford-AstraZeneca COVID-19 vaccine? - Approximating the funding to the University of Oxford for the research and development of the ChAdOx vaccine technology
PathProfiler: Automated Quality Assessment of Retrospective Histopathology Whole-Slide Image Cohorts by Artificial Intelligence, A Case Study for Prostate Cancer Research
Investigating childhood maltreatment as a modifier of genetic risk for cardiovascular disease in the UK Biobank
Where is Omicron? Comparison of SARS-CoV-2 RT-PCR and Antigen Test Sensitivity at Commonly Sampled Anatomic Sites Over the Course of Disease
Vitamin D and COVID-19 susceptibility and severity in the COVID-19 Host Genetics Initiative: A Mendelian randomization study
Impact of body mass index on 5-year survival rates in patients undergoing allogeneic hematopoietic stem cell transplantation
Mutational landscape of high-grade B-cell lymphoma with MYC-, BCL2 and/or BCL6 rearrangements characterized by whole-exome sequencing
Estimates of Single Dose and Full Dose BNT162b2 Vaccine Effectiveness among USAF Academy cadets, 1 Mar - 1 May 2021
Decision curve analysis to identify optimal candidates of liver resection for intermediate-stage hepatocellular carcinoma with hepatitis B cirrhosis：A cohort study
The consequences of adjustment, correction and selection in genome-wide association studies used for two-sample Mendelian randomization
Prediction of Procedural Pain during Endometrial Biopsy
Usual Source of Primary Care and Preventive Care Measures in a Pandemic: A Nationwide Study in Japan
Precise blood proteome profiling in an undiagnosed population with COVID-19.
Fibroblast Growth Factor-23 and Risk of Cardiovascular Diseases: a Mendelian Randomisation study
Infectivity and immune escape of the new SARS-CoV-2 variant of interest Lambda
Detection of HIV and Mycobacterium tuberculosis among University Students in Port Harcourt, Nigeria
Governor partisanship explains the adoption of statewide mask mandates in response to COVID-19
Comparing Sexual Network Mean Active Degree Measurement Metrics among Men who have Sex with Men
Heart Rate fractality disruption as a footprint of subthreshold depressive symptoms
Increased prevalence of AB group and FY*A red blood cell antigen in Caucasian SARS-CoV-2 convalescent plasma donors
Regional variation in cardiovascular genes enables a tractable genome editing strategy
Magnetic activated cell-sorting identifies a unique lung microbiome community associated with disease states