Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: COVID-19 Diagnostic Testing For All - Using Non-Dilutive Saliva Sample Collection, Stabilization and Ambient Transport Devices
Calibration of Two Validated SARS-CoV-2 Pseudovirus Neutralization Assays for COVID-19 Vaccine Evaluation
Ethnicity, migration, and weight misperception: a Born in Bradford study
Mental health in relation to changes in sleep, exercise, alcohol and diet during the COVID-19 pandemic: examination of five UK cohort studies
A Cross-sectional Study of Clinical COVID-19 Myocarditis
Combined Metabolic Activators Improve Cognitive Functions without Altering Motor Scores in Parkinson's Disease
Personal Resilience, Social Support, and Organizational Support Impact Burnout among Nurses During COVID-19
The contribution of common regulatory and protein-coding TYR variants in the genetic architecture of albinism
Research on the Emotions of Uninfected People during the COVID-19 Epidemic in China
AugmentA: Patient-specific Augmented Atrial model Generation Tool
Vaccine effectiveness after 1st and 2nd dose of the BNT162b2 mRNA Covid-19 Vaccine in long-term care facility residents and healthcare workers - a Danish cohort study
Changes in eating habits and sedentary behavior during the COVID-19 pandemic in adolescents with chronic conditions
Spatiotemporal Trends in Bed Bug Metrics, New York City
Mid-term subclinical myocardial injury detection in patients recovered from COVID-19 according pulmonary lesion severity.
Parental lifespan and polygenic risk score of longevity are associated with white matter hyperintensities
Patient reported outcome on endourethrotomy combined with Amplatz dilatation for treatment of incompletely obliterated posterior urethral stricture following pelvic trauma: Validation in the era of urethroplasty
The epidemiological impact of the Canadian COVID Alert App
Mortality in Switzerland in 2021
Does contrast-enhancement improve visualisation of lenticulostriate arteries in cerebral small vessel disease using time-of-flight magnetic resonance angiography at 7 Tesla?
The rich-to-poor vaccine donation game: When will self-interested countries donate their surplus vaccines during pandemics?
Determinants of Obesity in West Africa.
Association between time spent with family and loneliness among Japanese workers during the COVID-19 pandemic: a cross-sectional study
Novel Insights on Genetic and Environmental Factors in Parkinson's Disease from a regional Swedish Case-Control Cohort
Reasons underlying the intention to vaccinate children aged 5-11 against COVID-19: A cross-sectional study of parents in Israel, November 2021
The Addiction Risk Factor: A Unitary Genetic Vulnerability Characterizes Substance Use Disorders and Their Associations with Common Correlates
Transfer functions: learning about a lagged exposure-outcome association in time-series data