Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: REPEATABILITY OF A CALIBRATED DIGITAL SPECTROPHOTOMETER FOR DENTAL SHADE EVALUATION IN CURRENT, FORMER AND NEVER SMOKERS STUDY PROTOCOL
An umbrella review of the evidence linking oral health and systemic health: from the prevalence to clinical and circulating markers
Mitochondria-targeted antioxidant supplementation augments acute exercise-induced increases in muscle PGC1α mRNA and improves training-induced increases in peak power independent of mitochondrial content and function in untrained middle-aged men
Deep learning based electrocardiographic screening for chronic kidney disease
Detection of mosaic chromosomal alterations in children with severe developmental disorders recruited to the DDD study
A mixed methods analysis of participation in social contact surveys
Show us the Data: Global COVID-19 Wastewater Monitoring Efforts, Equity, and Gaps
Inpatient COVID-19 Mortality Rates: What are the predictors?
Monitoring of anti-SARS-CoV-2 IgG antibody immune response in infected and immunised healthcare workers in Hungary: a real-world longitudinal cohort study
Prevalence of Chronic Diseases, Depression, and Stress among U.S. Child Care Professionals during the COVID-19 Pandemic
Electronic early notification of sepsis in hospitalized ward patients: a study protocol for a stepped-wedge cluster randomized controlled trial
Covid-19 Associated Hepatitis in children (CAHC) during the second wave of SARS-CoV-2 infections in Central India: Is it a complication or transient phenomenon.
Factors Associated with Serious Psychological Distress during the COVID-19 Pandemic in Japan
Longevity of SARS-CoV-2 immune responses in haemodialysis patients and protection against reinfection
Detection of SARS-CoV-2 lineage P.1 in patients from a region with exponentially increasing hospitalization rates in February 2021, Rio Grande do Sul, Southern Brazil
Safety of COVID-19 vaccines in pregnancy: a Canadian National Vaccine Safety (CANVAS) Network study
Impact of COVID-19 on Pediatric Emergency Department Visits: A Retrospective Cohort Study.
Depression stigma effects on help-seeking attitudes in college students: Baseline results of a randomized controlled trial
How optimal allocation of limited testing capacity changes epidemic dynamics
The Impact of Universal Transport Media and Viral Transport Media Liquid Samples on a SARS-CoV-2 Rapid Antigen Test
Rapid implementation of a cohort for the study of post-acute sequelae of SARS-CoV-2 infection/COVID-19
Impact of Antibody Cocktail Therapy Combined with Casirivimab and Imdevimab on Clinical Outcome for Covid-19 patients in A Real-Life Setting: A Single Institute Analysis
Are We There Yet? Big Data Significantly Overestimates COVID-19 Vaccination in the US
USE OF FLUNARIZINE AS A PREVENTIVE FOR VESTIBULAR MIGRAINE CRISES IN COMPARISON WITH OTHER DRUGS: SYSTEMATIC LITERATURE REVIEW
Prophylactic Antibiotics in Arteriovenous Fistulae: A systematic Review
EVIDENCE FOR BIOLOGICAL AGE ACCELERATION AND TELOMERE SHORTENING IN COVID-19 SURVIVORS