Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: Access to healthcare as an important moderating variable for understanding geography of immunity levels for COVID-19 - preliminary insights from Poland
Full vaccination against COVID-19 suppresses SARS-CoV-2 delta variant and spike gene mutation frequencies and generates purifying selection pressure
A year of genomic surveillance reveals how the SARS-CoV-2 pandemic unfolded in Africa
Lower hypothalamus subunit volumes link with long-term growth failure after preterm birth: a longitudinal case-control study
Time-specific effects of a multifaceted intervention on accelerometer-measured physical activity in primary school children: A cluster-randomized controlled trial
Size of societal volunteering predicts COVID-19 mortality
Clinical prediction rule for SARS-CoV-2 infection from 116 U.S. emergency departments
COVID-19 OUTCOMES IN PREGNANCY: A REVIEW OF 275 SCREENED STUDIES
Ablation of Apparent Diffusion Coefficient Hyperintensity Clusters and Mesial Temporal Lobe Epilepsy Improves Seizure Outcomes after Laser Interstitial Thermal Therapy
Antibody response to first and second dose of BNT162b2 in a cohort of characterized healthcare workers
Can alcohol consumption in Germany be reduced by alcohol screening, brief intervention and referral to treatment in primary health care? Results of a simulation study
Interactive network-based clustering and investigation of multimorbidity association matrices with associationSubgraphs
Factors associated with acceptance of a digital contact tracing application for COVID-19 in the Japanese working-age population
Protocol for a nationwide Internet-based health survey in workers during the COVID-19 pandemic in 2020
Expanding access to SARS-CoV-2 IgG and IgM serologic testing using fingerstick whole blood, plasma, and rapid lateral flow assays
Natural Language Processing to Identify Patients with Cognitive Impairment
Combination between Mifepristone and Methotrexate to Treat Ectopic Pregnancy: A Systematic Review Protocol
Investigating mobility-based fast food outlet visits as indicators of dietary intake and diet-related disease
The Investigation of Pulmonary Abnormalities using Hyperpolarised Xenon Magnetic Resonance Imaging in Patients with Long-COVID.
Implications in the quantitation of SARS-CoV2 copies in concurrent nasopharyngeal swabs, whole mouth fluid and respiratory droplets
Refined characterization of circulating tumor DNA through biological feature integration
Utilization of health care services before and after media attention about fatal side effects of the AstraZeneca vaccine
Impact of a Multidisciplinary Nutritional Support Team on Quality Improvement in Home Parenteral Nutrition
Paradox of Predictors in Critically ill COVID-19 Patients: Outcome of a COVID-dedicated Intensive Care Unit
White matter variability, cognition, and disorders: a systematic review.
Incidence of Long-term Post-acute Sequelae of SARS-CoV-2 Infection Related to Pain and Other Symptoms: A Living Systematic Review and Meta-analysis