Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Real-world serologic responses to Extended-interval and Heterologous COVID-19 mRNA vaccination in Frail Elderly - Interim report from a prospective observational cohort study
Neighborhood Disadvantage and Active, Disabled and Total Life Expectancy Among Community-living Older Persons
Psychosocial family-level mediators in the intergenerational transmission of trauma: Protocol for a systematic review and meta-analysis
LncRNAs NEAT1 and MALAT1 Differentiate Inflammation in Severe COVID-19 Patients
Multi-steroid profiling by uPLC-MS/MS with post-column infusion of ammonium fluoride
A Clinical Feasibility Study of an Artificial Intelligence-Powered Clinical Decision Support System
Risk scores for predicting HIV incidence among the general population in sub-Saharan Africa: a systematic review and meta-analysis
A model-based approach to improve intranasal sprays for respiratory viral infections
Uptake of Covid-19 vaccines among frontline workers in California state prisons
RNA sequencing of a large number of psoriatic patients identifies 131 novel miRNAs and 11 miRNAs associated with disease severity
Early life infection and proinflammatory, atherogenic metabolomic and lipidomic profiles at 12 months of age: a population-based cohort study
Prediction of intensive care unit mortality based on missing events
Association of preference and frequency of teleworking with work functioning impairment: a nationwide cross-sectional study of Japanese full-time employees
Emulation of epidemics via Bluetooth-based virtual safe virus spread: experimental setup, software, and data
Genome and epigenome wide studies of plasma protein biomarkers for Alzheimer's disease implicate TBCA and TREM2 in disease risk
Estimated Incidence of Respiratory Hospitalizations Attributable to RSV Infections across Age and Socioeconomic Groups
Variant-of-concern-attributable health and health system-related outcomes: a population-level propensity-score matched cohort study
Hyperactive immature state and differential CXCR2 expression of neutrophils in severe COVID-19
Effects of drinking water, sanitation, handwashing, and nutritional interventions on immune status in young children: a cluster-randomized controlled trial in rural Bangladesh
Precise Language Responses Challenge Easy Rating Scales - Comparing Clinicians and Respondents Views
Strengthening public COVID-19 response with private facilities in Kisumu, Kenya
Intubation and Inhospital mortality in trauma patients with Glasgow Coma Scale Score eight or less. A multicenter cohort study.
PCSK6 and Survival in Idiopathic Pulmonary Fibrosis
Global reports of takotsubo (stress) cardiomyopathy following COVID-19 vaccination: a systematic review and meta-analysis
Transfer functions: learning about a lagged exposure-outcome association in time-series data
Donor genetic variants in interleukin-6 and interleukin-6 receptor associate with biopsy-proven rejection following kidney transplantation.