Instruct: Identify the main category of Medrxiv papers based on their titles.
Query: Making colonoscopy-based screening more efficient: a "gateopener" approach
Causal effect of adiposity on the risk of 19 gastrointestinal diseases: a Mendelian randomization study
Effects of exercise on brain health outcomes in children with overweight/obesity: the ActiveBrains randomized controlled trial
Factors associated with secondhand smoke exposure among non-smoking employees in the workplace: A cross-sectional study in Qingdao, China
Visual Exploratory Analysis of COVID-19 Pandemic: One Year After the Outbreak
An interdisciplinary outpatient therapy program for children and adolescents with headache - real world data
HOXA Amplification Defines a Genetically Distinct Subset of Angiosarcomas
COVID-19 Related Chemosensory Changes in Individuals with Self-Reported Obesity
Bayesian Logical Neural Networks for Human-Centered Applications in Medicine
Screening for SARS-CoV-2 infections in daycare facilities for children in a large city in Germany
Prevalence of multimorbidity combinations and their association with medical costs and poor health among U.S. adults
An integrative analysis of clinical and epigenetic biomarkers of mortality
Prevalence and risk factors of internet gaming disorder and problematic internet use before and during the COVID-19 pandemic: A large online survey of Japanese adults
Massive social protests amid the pandemic in selected  Colombian  cities:  Did  they increase COVID-19 cases?
Viral dispersion in open air
Molecular Programs of Glomerular Hyperfiltration in Early Diabetic Kidney Disease
Bone health risk assessment in a clinical setting: an evaluation of a new screening tool for active populations
Three-dimensional printing of patient-specific lung phantoms for CT imaging: emulating lung tissue with accurate attenuation profiles and textures
'We don't routinely check vaccination background in adults': a national qualitative study of barriers and facilitators to vaccine delivery and uptake in adult migrants through UK primary care
Combined treatment of nightmares with targeted memory reactivation and imagery rehearsal therapy: a randomized controlled trial
Loss-of-function of MFGE8 and protection against coronary atherosclerosis
Cerebral hypoperfusion is a late pathological event in the course of Alzheimer's disease
Sequencing Data of North American SARS-CoV-2 Isolates Shows Widespread Complex Variants
Use of U.S. Blood Donors for National Serosurveillance of SARS-CoV-2 Antibodies: Basis for an Expanded National Donor Serosurveillance Program.
Interpretable Gender Classification from Retinal Fundus Images using BagNets
Toward Development of Guidelines for Virtual Administration of Paediatric Standardized Language and Literacy Assessments: Recommendations for Clinicians and Researchers