Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: SARS-CoV-2 reinfection trends in South Africa: analysis of routine surveillance data
Impact of COVID-19 pandemic on diet behaviour among UK adults: a longitudinal analysis of the HEBECO study
Longitudinal profiling of circulating tumour DNA for tracking tumour dynamics in pancreatic cancer
Brain ageing in schizophrenia: evidence from 26 international cohorts via the ENIGMA Schizophrenia consortium
Effects of diet, activities, environmental exposures and trimethylamine metabolism on alveolar breath compounds: protocol for a retrospective case-cohort observational study
Comparative efficacy of tocilizumab and baricitinib in COVID-19 treatment: a retrospective cohort study
Carbapenem resistant Klebsiella pneumoniae infection across the teaching university affiliated hospitals: risk factors for acquisition among hospitalized patients and molecular subtyping
Altered plasma, urine, and tissue profiles of sulfatides and sphingomyelins in patients with renal cell carcinoma
Evaluating Digital Device Technology in Alzheimer's Disease via Artificial Intelligence
Should I stay or should I go? Observation post-vaccination during the COVID-19 pandemic and the law of unintended consequences
Active arts engagement and depression in older adults in the United States: Longitudinal evidence from the Health and Retirement Study
Variations in housing affordability and health relationships by measurement and sub-population assessment.
Adversarial Attack Vulnerability of Deep Learning Models for Oncologic Images
Vegetable intake and metabolic risk factors: A Mendelian randomization study
Higher knee hypertension in patients with hemiplegia correlates lower lateral and medial meniscus volume in the paretic leg
Level and determinants of willingness to pay for rapid COVID-19 testing delivered through private retail pharmacies in Kenya.
Size of societal volunteering predicts COVID-19 mortality
Leg-heel chest compression as an alternative for medical professionals in times of COVID-19
Brain network mechanisms of visual perceptual organization in schizophrenia and bipolar disorder
Wastewater Surveillance of U.S. Coast Guard Installations and Seagoing Military Vessels to Mitigate the Risk of COVID-19 Outbreaks
The Physiologic Response to COVID-19 Vaccination
Association of Age-Related Macular Degeneration With Mortality: A Propensity Score-Matched Analysis
Association between COVID-19, mobility and environment in Sao Paulo, Brazil
Alcohol consumption and telomere length: observational and Mendelian randomization approaches
REACT-2 Round 5: increasing prevalence of SARS-CoV-2 antibodies demonstrate impact of the second wave and of vaccine roll-out in England
Mobility restrictions as a pandemic response