Instruct: Identify the main category of a Medrxiv paper based on its title.
Query: STATISTICAL AND MULTIVARIATE TECHNIQUES TO TRACE THE SOURCES OF GROUND WATER CONTAMINANTS AND AFFECTING FACTORS OF GROUNDWATER POLLUTION IN AN OIL AND GAS PRODUCING WETLAND IN RIVERS STATE, NIGERIA.
Forensic Alcohol Calculations in transgender individuals undergoing gender-affirming hormonal treatment
Impact of long-term care facility size on preparedness and adherence to infection prevention and control guidance for the mitigation of COVID-19
Interdental and subgingival microbiota may affect the tongue microbial ecology and oral malodour in health, gingivitis and periodontitis
Cyproterone Acetate and risk of Meningioma
Whole-Blood Methylation Analysis Reveals Respiratory Environmental Functional Pathways Involved in Severity Following SARS-CoV-2 Infection
Cognitive Training and Transcranial Direct Current Stimulation in Older Persons with HIV-associated Neurocognitive Disorder
Inferring the true number of SARS-CoV-2 infections in Japan
Social Contact Patterns and Implications for Infectious Disease Transmission: A Systematic Review and Meta-Analysis of Contact Surveys
Deficient auditory gamma-BOLD coupling in schizophrenia is related to sensory gating deficits
Racial differences in white matter hyperintensity burden in aging, MCI, and AD
Hydroxychloroquine Prophylaxis against Coronavirus Disease-19: Practice Outcomes among Health-Care Workers
Pre-existing antibodies targeting a linear epitope on SARS-CoV-2 S2 cross-reacted with commensal gut bacteria and shaped vaccine induced immunity
Sensitivity of SARS-CoV-2 antigen-detecting rapid tests for Omicron variant
SARS-CoV-2 antibody persistence after five and twelve months: A cohort study from South-Eastern Norway
No Evidence that Ongoing HIV-Specific Immune Responses Contribute to Persistent Inflammation and Immune Activation in Persons on Long-Term ART
Innate lymphoid cells and disease tolerance in SARS-CoV-2 infection
Reduction of exposure to simulated respiratory aerosols using ventilation, physical distancing, and universal masking
Serial evaluation of anti-SARS-CoV-2 IgG antibody and breakthrough infections in BNT162b2 Vaccinated migrant workers from Bangladesh
Anemia is a risk factor for rehospitalization after SARS-CoV-2 clearance
Using Best-Worst Scaling to investigate younger adult Canadians' preferences for COVID-19 vaccination and public health measures: an observational study
COVID-19 impact on stroke admissions during France's first epidemic peak: an exhaustive, nationwide, observational study
Assessing the potential cost-effectiveness of centralized vs point-of-care testing for hepatitis C virus in Pakistan: a model-based comparison
Estimation of the Reproduction Number for COVID-19 Based on Latest Vaccination Results and the Timing for Herd-Immunity: Prospect for 2021
The impact of demographic factors on the accumulated number of COVID-19 cases per capita in Europe and the regions of Ukraine in the summer of 2021
Detection of HIV and Mycobacterium tuberculosis among University Students in Port Harcourt, Nigeria