Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Statistical challenges of investigating a disease with a complex diagnosis
Predicting the unpredictable: how dynamic COVID-19 policies and restrictions challenge model forecasts
Engagement in leisure activities and depression in older adults in the United States: Longitudinal evidence from the Health and Retirement Study
Two-phase sample selection strategies for design and analysis in post-genome wide association fine-mapping studies
Dramatic drop of new SARS-CoV-2 infections among health care workers after the first dose of the BNT162b2 mRNA Covid-19 Vaccine
A New Hematological Prognostic Index For Covid-19 Severity
Dental-Facial Midline: An Esthetic Based Classification
Safety and Pharmacokinetics of Intranasally Administered Heparin
Thailand effective coverage of diabetes and hypertension: challenges and solutions
SARS-CoV-2 infection in pregnancy in Denmark - characteristics and outcomes after confirmed infection in pregnancy: a nationwide, prospective, population-based cohort study
Effectiveness of the third dose of BNT162b2 vaccine on neutralizing Omicron variant in the Japanese population
Comparison of Accelerated Resolution Therapy (ART) for Post-Traumatic Stress Disorder (PTSD) Between Veterans With and Without Prior PTSD Treatment
Using explainable machine learning to identifypatients at risk of reattendance at discharge from emergency departments
Rapid base-specific calling of SARS-CoV-2 variants of concern using combined RT-PCR melting curve screening and SIRPH technology
Improving the diagnosis of severe malaria in African children using platelet counts and plasma PfHRP2 concentrations
Development of Childhood Asthma Prediction Models using Machine Learning Approaches
Evaluation of the CD4+ T cell response to SARS-CoV-2 infection and cross reactivity to beta variant in children of all ages
Machine Learning with Objective Serum Markers and Algorithmic Deep Learning Computed Tomography Scan Analysis for Classification of Brain Injury
100,000 lumens to treat seasonal affective disorder: A proof of concept RCT of bright, whole-room, all-day (BROAD) light therapy
Development and validation protocol for an instrument to measure women's empowerment in urban sanitation across countries: The Agency, Resources, and Institutional Structures for Sanitation-related Empowerment (ARISE) Scales
When do persuasive messages on vaccine safety steer COVID-19 vaccine acceptance and recommendations? Behavioral insights from a randomised controlled experiment in Malaysia.
Imprecise assessment of mask use may obscure associations with SARS-CoV-2 positivity
Significance of SARS-CoV-2 Specific Antibody Testing during COVID-19 Vaccine Allocation
Staff-Pupil SARS-CoV-2 Infection Pathways in Schools: A Population Level Linked Data Approach
Genomic insights into early SARS-CoV-2 strains isolated in Reunion Island
Delayed booster dosing improves human antigen-specific Ig and B cell responses to the RH5.1/AS01B malaria vaccine