Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: The impact of National Centralized Drug Procurement policy on the use of policy-related original and generic drugs in public medical institutions in China: A difference-in-difference analysis based on national database
Problems with Evidence Assessment in COVID-19 Health Policy Impact Evaluation (PEACHPIE): A systematic review of evidence strength
Assessment of N95 respirator for reuse after sterilization: filtration efficacy, breathing resistance, quality factor, chemical structure and surface charge density
Serological Response in Lung Transplant Recipients after Two Doses of SARS-CoV-2 mRNA Vaccines
Contrasting epidemiology and population genetics of COVID-19 infections defined with 74 polymorphic loci in SARS-CoV-2 genomes sampled globally.
A pilot randomised prospective comparison of two approaches for tibial nailing using clinical and novel imaging outcome measures - study protocol
Shut and re-open: the role of schools in the spread of COVID-19 in Europe
Identifying the Factor Structure of the DSM-5 Level 1 Cross-Cutting Symptom Measure
Unstable periodic orbits are faithful biomarker for the onset of epileptic seizure
Resistome characterization of extended-spectrum beta-lactamase (ESBL)-producing Escherichia coli isolated from wastewater treatment utilities in Oregon
Remdesivir for the Treatment of COVID-19: An Updated Systematic Review and Meta-Analysis
Opioids, Needle Exchange, and Barriers to Care in the Rural Context: Interviews with Law Enforcement and Emergency Medical Personnel
Evaluating growth pattern and assessing future scenario of COVID-19 epidemic of India
Non-pharmaceutical interventions, vaccination and the Delta variant: epidemiological insights from modelling England's COVID-19 roadmap out of lockdown
Predicting hospitalizations related to ambulatory care sensitive conditions with machine learning for population health planning: derivation and validation cohort study
Significant and sustained decrease in non-SARS-CoV-2 respiratory viral infections during COVID-19 public health interventions.
Association of subcutaneous or intravenous route of administration of casirivimab and imdevimab monoclonal antibodies with clinical outcomes in COVID-19.
Humoral and cellular responses to SARS-CoV-2 vaccination in patients with lymphoid malignancies
Post-viral mental health sequelae: Systematic review and meta-analysis of prevalence proportions
OLFACTORY TRAINING EFFICIENCY IN POST-COVID-19 PERSISTENT OLFACTORY DISORDERS
Rapid genome surveillance of SARS-CoV-2 and study of risk factors using shipping container laboratories and portable DNA sequencing technology
Brain disconnectome mapping and serum neurofilament light levels in multiple sclerosis
Radical versus partial nephrectomy and survival from stage T1 renal cell carcinoma in three prospective cohorts
Tilted 3D visual scenes - A new therapy approach for pusher syndrome
Incidence and outcome of delirium during Helmet CPAP treatment in COVID-19 patients
Secrets of the hospital underbelly: patterns of abundance of antimicrobial resistance genes in hospital wastewater vary by specific antimicrobial and bacterial family