Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Tobacco 21: Retailer Perceptions, Experiences, and Challenges Before and After a New Minimum Legal Sales Age Law in Maryland
The impact of COVID-19 non-pharmaceutical interventions on the lived experience of people living in Thailand, Malaysia, Italy and the United Kingdom: a cross-country qualitative study
Effect of working from home on the association between job demands and psychological distress
USING PHYLOGENETICS TO INFER HIV-1 TRANSMISSION DIRECTION BETWEEN KNOWN TRANSMISSION PAIRS
Modelling, Simulations and Analysis ofthe First and Second COVID-19 Epidemics in Beijing
Hemodialysis Patients Show a Highly Diminished Antibody Response after COVID-19 mRNA Vaccination Compared to Healthy Controls
Models of COVID-19 vaccine prioritisation: a systematic literature search and narrative review
The burden of isolation to the individual: a comparison between isolation for COVID-19 and for other influenza-like illnesses in Japan
SAFE REOPENING STRATEGIES FOR EDUCATIONAL INSTITUTIONS DURING COVID-19: A DATA-DRIVEN AGENT-BASED APPROACH
Outbreak of P.3 (Theta) SARS-CoV-2 emerging variant of concern among food service workers in Louisiana
Impact of COVID-19 on healthcare workers at a cancer care centre
Emerging from the COVID-19 pandemic: impacts of variants, vaccines, and duration of immunity
Age-dependent immune response to the Biontech/Pfizer BNT162b2 COVID-19 vaccination
Development and validation of an electronic health records-based opioid use disorder algorithm by expert clinical adjudication
Long Term Physical, Mental and Social Health Effects of COVID-19 in the Pediatric Population: A Scoping Review
Gender differences in the determinants of willingness to get the COVID-19 vaccine among the working-age population in Japan
Serological Responses to the First Three Doses of SARS-CoV-2 Vaccination in Inflammatory Bowel Disease: A Prospective Cohort Study
Expression of ACE2 receptor, soluble ACE2, Angiotensin I, Angiotensin II and Angiotensin (1-7), is modulated in COVID-19 patients.
Identification of genetic loci associated with antibodies to specific sets of citrullinated peptides in rheumatoid arthritis patients
2-Deoxy-D-Glucose as an Adjunct to Standard of Care in the Medical Management of COVID-19: A Proof-of-Concept & Dose-Ranging Randomised Clinical Trial
Using viral load and epidemic dynamics to optimize pooled testing in resource constrained settings
Factors associated with transmission in COVID-19 outbreaks in long-term care facilities
Inherent random fluctuations in COVID-19 outbreaks may explain rapid growth of new mutated virus variants
Ribavirin antiviral combination therapy in COVID 19, a single-center experience
Assessment of Genetic Susceptibility to Multiple Primary Cancers through Whole-Exome Sequencing in Two Large Multi-Ancestry Studies
Association between oral health and hyperuricemia in Korean adults: Korea National Health and Nutrition Examination Survey 2016-2019