Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: International Randomized Controlled Trial Evaluating Changes in Oral Health in Smokers After Switching to Combustion-Free Nicotine Delivery Systems: the SMILE protocol
Dental mitigation strategies to reduce aerosolization of SARS-CoV-2
Potentially inappropriate prescribing of DOACs to patients with mechanical heart valves: a federated analysis of 57.9 million patients' primary care records in situ using OpenSAFELY
Immunity acquired by a minority active fraction of the population could explain COVID-19 spread in Greater Buenos Aires (June-November 2020)
Short-Term Immune Response After Inactivated SARS-CoV-2 (CoronaVac, Sinovac) And ChAdOx1 nCoV-19 (Vaxzevria, Oxford-AstraZeneca) Vaccinations in Thai Health Care Workers
Evidence for SARS-CoV-2 Spike Protein in the Urine of COVID-19 patients
P. acnes qPCR-based antibiotics resistance assay (ACQUIRE) reveals widespread macrolide resistance in acne patients and can eliminate macrolide misuse in acne treatment
Palliative care in the treatment of women with breast cancer: a scoping review protocol
Real-time genomics to track COVID-19 post-elimination border incursions in Aotearoa New Zealand
Deleterious effects of SARS-CoV-2 infection on human pancreatic cells
The early impact of vaccination against SARS-CoV-2 in Region Stockholm, Sweden
Model Based Estimation of the SARS-CoV-2 Immunization Level in Austria and Consequences for Herd Immunity Effects
A genetically-informed study disentangling the relationships between tobacco smoking, cannabis use, alcohol consumption, substance use disorders and respiratory infections, including COVID-19
An integrative analysis of clinical and epigenetic biomarkers of mortality
Increasing Numbers of Non-communicable Disease Co-morbidities: Major Risk Factors for Hospitalization among a Cohort of People with HIV and COVID-19 Coinfection
Epidemiology and transmission of COVID-19 in cases and close contacts in Georgia in the first four months of the epidemic
Effectiveness and safety of acupuncture for insulin resistance in women with polycystic ovary syndrome : A systematic review and meta-analysis
COVID-19 in hospitalized patients in 4 hospitals in San Isidro, Buenos Aires, Argentina
Citizens' Attitudes Under Covid19: a cross-country panel survey of public opinion in 11 democracies
Gasdermin-D activation by SARS-CoV-2 trigger NET and mediate COVID-19 immunopathology
Transmission of SARS-CoV-2 in Norwegian schools: A population-wide register-based cohort study on characteristics of the index case and secondary attack rates
A joint spatial marked point process model for dengue and severe dengue in Medellin, Colombia.
Association between discrimination stress and suicidality in preadolescent children
SARS-CoV-2 vaccine effectiveness in immunosuppressed kidney transplant recipients
Acute Brain Ischemia, Infarction and Hemorrhage in Subjects Dying with or Without Autopsy-Proven Acute Pneumonia
Victimization and witnessing of workplace bullying and physician-diagnosed physical and mental health and organizational outcomes: a cross-sectional study of a nationally representative sample in Japan