Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Persistence of child marriage in rural Bangladesh and impact on maternal and perinatal health: findings from a health and demographic surveillance system
A Multidisciplinary Prematurity Research Cohort Study
Epidemiological Investigation of New SARS-CoV-2 Variant of Concern 202012/01 in England
The effect of Health Literacy on COVID-19 Vaccine Hesitancy: The Moderating Role of Stress
Coverage and effectiveness of mRNA SARS-CoV-2 vaccines among United States Veterans
COGNITIVE ADVERSE EFFECTS OF LACOSAMIDE IN PATIENTS WITH LOCALIZATION RELATED EPILEPSY - A PROSPECTIVE OBSERVATIONAL STUDY
Are the Items of the Starkstein Apathy Scale Fit for the Purpose of Measuring Apathy Post-Stroke?
Clinicogenomic analysis of breakthrough infections by SARS CoV2 variants after ChAdOx1 nCoV- 19 vaccination in healthcare workers
SARS-CoV-2 evolution and immune escape in immunocompromised patients treated with exogenous antibodies
Prolonged SARS-CoV-2 infection in patients with lymphoid malignancies
Symptom Prediction and Mortality Risk Calculation for COVID-19 Using Machine Learning
Time scale performance of rapid antigen testing for SARS-COV-2: evaluation of ten rapid antigen assays
Epidemiology and genetic diversity of SARS-CoV-2 lineages circulating in Africa
At least three doses of leading vaccines essential for neutralization of SARS-CoV-2 Omicron variant
Evaluation of the ROX index in SARS-CoV-2 Acute Respiratory failure treated with both High-Flow Nasal Oxygen (HFNO) and Continuous Positive Airway Pressure (CPAP)
COVID-19-related Smell and Taste Impairment with Widespread Diffusion of SARS-CoV-2 Omicron Variant
Proxalutamide Improves Lung Injury in Hospitalized COVID-19 Patients - an Analysis of the Radiological Findings of the Proxa-Rescue AndroCoV Trial
How time-scale differences in asymptomatic and symptomatic transmission shape SARS-CoV-2 outbreak dynamics
Dementia Risk and Dynamic Response to Exercise: A non-randomized clinical trial
Plasmodium falciparum hrp2 and hrp3 gene deletion status in Africa and South America by highly sensitive and specific digital PCR
Carbon dioxide, COVID-19 and the importance of restaurant ventilation: a case study from Spain approaching Christmas 2021
Investigating neurophysiological effects of a short course of tDCS for cognition in schizophrenia: a target engagement study.
Communicating risk to patients: developing an Efficiency Index for diagnostic and screening tests
Adverse events of iron and/or erythropoiesis-stimulating agent therapy in preoperatively anaemic elective surgery patients: a systematic review
Rates of regional tau accumulation in ageing and across the Alzheimer's disease continuum: An AIBL 18F-MK6240 PET study
Uptake of xenobiotic milk induces microRNA profile changes in the neonate intestine