Instruct: Identify the main category of the given Medrxiv paper based on its title.
Query: A national retrospective cohort study of mechanical ventilator availability and its association with mortality risk in intensive care patients with COVID-19
Machine Learning for Mechanical Ventilation Control
Investigating the intention to receive the COVID-19 vaccination in Macao: implications for vaccination strategies
Using time use diaries to track changing behavior across successive stages of COVID-19 social restrictions
Price and Tax Elasticity of Alcohol Consumption: Evidence from Seven Indian States
The SENSOR System: Using Standardized Data Entry and Dashboards for Review of Scientific Studies Using the Clinical Applications of Psychedelics as an Illustration
Detecting SARS-CoV-2 lineages and mutational load in municipal wastewater; a use-case in the metropolitan area of Thessaloniki, Greece
Random effects modelling vs logistic regression for the inclusion of cluster level covariates in propensity scores for medical device and surgical epidemiology
Bounding the levels of transmissibility & immune evasion of the Omicron variant in South Africa
Providing a safe, in-person, residential college experience during the COVID-19 pandemic
Pediatric intensive care hybrid-style clinical round during COVID-19 pandemic: A pilot study
Coupling machine learning and high throughput multiplex digital PCR enables accurate detection of carbapenem-resistant genes in clinical isolates
Upregulated miR-200c may increase the risk of obese individuals to severe COVID-19
A human multisystem disorder with autoinflammation, leukoencephalopathy and hepatopathy is caused by mutations in C2orf69
SARS-CoV-2-specific Humoral Immune Responses after A Single Dose of Inactivated Whole-virus SARS-CoV-2 Vaccine in Kidney Transplant Recipients: An Initial Report
"We just considered it  to be over there" : A qualitative study exploring urban perspectives for disease introduction
Robust SARS-CoV-2-specific and heterologous immune responses after natural infection in elderly residents of Long-Term Care Facilities
Adherence to the HIV early infant diagnosis testing protocol among HIV exposed infants in a hard-to-reach fishing community in Uganda
Association of Egg Consumption, Metabolic Markers, and Risk of Cardiovascular Diseases: A Nested Case-control Study
Are probiotics and prebiotics safe for use during pregnancy and lactation? A systematic review and meta-analysis
Validation of the 4C Deterioration Model for COVID-19 in a UK teaching hospital during Wave 2
Clinical profiles at the time of diagnosis of COVID-19 in Costa Rica during the pre-vaccination period using a machine learning approach
Coupling freedom from disease principles and early warning from wastewater surveillance to improve health security
Prevalence, determinants, and impact on general health and working capacity of post-acute sequelae of COVID-19 six to 12 months after infection: a population-based retrospective cohort study from southern Germany
Cyclooxygenase inhibitor use is associated with increased COVID-19 severity
Is my cough a cold or covid? A qualitative study of COVID-19 symptom recognition and attitudes towards testing in the UK