Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Alterations in CD39/CD73 Axis of T cells associated with COVID-19 severity
SARS-CoV-2 specific T cell and humoral immune responses upon vaccination with BNT162b2
Crowdfunding for health research: A global systematic review, qualitative evidence synthesis and TDR pilot for LMIC researchers
Predicting Post-operative Pain in Lung Cancer Patients using Pre-operative Peak Alpha Frequency
Cross-sectional equity analysis of accessibility by automobile to tertiary care emergency services in Cali, Colombia in 2020
Optimal dose and safety of molnupiravir in patients with early SARS-CoV-2: a phase 1, dose-escalating, randomised controlled study
Rapid antifouling nanocomposite coating enables highly sensitive multiplexed electrochemical detection of myocardial infarction and concussion markers
Increased Autotaxin levels in severe COVID-19, correlating with IL-6 levels, endothelial dysfunction biomarkers, and impaired functions of dendritic cells
Hyperconnectivity and altered dynamic interactions of a nucleus accumbens network in post-stroke depression
Arrhythmic Outcomes in Catecholaminergic Polymorphic Ventricular Tachycardia
Rationale, protocol and baseline characteristics of the metabolome, microbiome, and dietary salt intervention study (MetaSalt)
Body mass index and subfertility: multivariable regression and Mendelian randomization analyses in the Norwegian Mother, Father and Child Cohort Study
Covid-19 and Excess Mortality in Medicare Beneficiaries
Point-of-care ultrasonography for risk stratification of non-critical suspected COVID-19 patients on admission (POCUSCO): a prospective binational study
Safety and immunogenicity of the third booster dose with inactivated, viral vector, and mRNA COVID-19 vaccines in fully immunized healthy adults with inactivated vaccine
Evaluation of Trans-Sodium Crocetinate (TSC) on Peripheral Oxygenation in Healthy Individuals Using Transcutaneous Oximetry
COVID-19 vaccine perceptions: An observational study on Reddit
Epidemiological characteristics of the B.1.526 SARS-CoV-2 variant
Alternative Factor Prescribing after Low-Dose Recombinant Factor VIIa Protocol in Cardiac Surgery
Modeling the levels, trends, and connectivity of malaria transmission using genomic data from a health facility in Thies, Senegal
Immunity status in patients with periprosthetic knee joint infection
A Randomized Trial of Otilimab in Severe COVID-19 Pneumonia (OSCAR)
Breast and prostate cancer risk: the interplay of polygenic risk, high-impact monogenic variants, and family history
Principles and test methods of non-contact body thermometry
Predicting severe COVID-19 outcomes for triage and resource allocation
Anti-CELA1 KF4 Antibody Prevents Emphysema by Inhibiting Stretch-Mediated Remodeling