Instruct: Identify the main category of the given medRxiv paper based on its title.
Query: Efficacy of two doses of COVID-19 vaccine against severe COVID-19 in those with risk conditions and residual risk to the clinically extremely vulnerable: the REACT-SCOT case-control study
Epidemiological and Clinical Features, Treatment Status, and Economic Burden of Traumatic Spinal Cord Injury in China
SARS-CoV-2 Seroprevalence among First Responders in Northeastern Ohio
COMplex mental health PAThways (COMPAT) Study: a mixed methods study to inform an evidence-based service delivery model for people with complex needs: Study protocol
Safety and Immunogenicity of An Egg-Based Inactivated Newcastle Disease Virus Vaccine Expressing SARS-CoV-2 Spike: Interim Results of a Randomized, Placebo-Controlled, Phase 1/2 Trial in Vietnam
Impact of diabetes mellitus on the stabilization and osseointegration of dental implants: a retrospective study in Greece
Factors Associated With Post-craniotomy Headache After Microvascular Decompression in Hemifacial Spasm? A Retrospective Study
Head-to-head performance comparison of self-collected nasal versus professional-collected nasopharyngeal swab for a WHO-listed SARS-CoV-2 antigen-detecting rapid diagnostic test
Complementary non-sputum diagnostic testing using oral swabs and urine LAM testing for TB in people with HIV
Episodic future thinking and compassion reduce public health guideline noncompliance urges: A randomised controlled trial
A Prospective Study of Long-Term Outcomes Among Hospitalized COVID-19 Patients with and without Neurological Complications
Attitudes towards glaucoma genetic risk assessment in unaffected individuals
Human leishmaniasis vaccines: use cases, target population and potential global demand
Are epidemic growth rates more informative than reproduction numbers?
Analytical performance of eleven SARS-CoV-2 antigen-detecting rapid tests for Delta variant
Use of Convalescent Plasma Therapy among Hospitalized Coronavirus Disease 2019 (COVID-19) Patients: A Single-Center Experience
COVID-19 Classification of X-ray Images Using Deep Neural Networks
Prevalence of SARS CoV-2 infection among Health Care Workers of a hybrid tertiary COVID 19 hospital in Kerala
No difference in cognitive task-related oscillations between human internal globus pallidus and subthalamic nucleus
SOUTH AMERICAN INDIGENOUS COMMUNITIES AND BODY MASS INDEX: A SYSTEMATIC REVIEW AND META-ANALYSIS
Identifying Online Advice-Seekers for Recovering from Opioid Use Disorder
Geographic barriers to establishing a successful hospital referral system in rural Madagascar
A Genomic Snapshot of Enterococcus faecalis within Public Hospital Environments in South Africa
Premature Ventricular Contractions During the Recovery Phase of Exercise Are Only Associated with Increased Cardiovascular Mortality when Present Together with Echocardiographic Abnormalities
High viral SARS-CoV-2 load in placenta of patients with hypertensive disorders after COVID-19 during pregnancy
Short-term Projections based on Early Omicron Variant Dynamics in England.