Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: De novo Powered Air-Purifying Respirator Design and Fabrication for Pandemic Response
Hypovitaminosis D is associated with sleep disorders in workers on alternating shifts with cardiovascular risk factors
The landscape of circulating platelet aggregates in COVID-19
A causal framework for assessing the transportability of clinical prediction models
Digital Therapeutics Care Utilizing Genetic and Gut Microbiome Signals for the Management of Functional Gastrointestinal Disorders: Results from a Preliminary Retrospective Study
Computing the daily reproduction number of COVID-19 by inverting the renewal equation using a variational technique
Ventilation rate assessment by carbon dioxide levels in dental treatment rooms
A qualitative study exploring the impact of the COVID-19 pandemic on People Who Inject Drugs (PWID) and drug service provision in the UK: PWID and service provider perspectives
Unmasking Seasonal Cycles in Human Fertility: How holiday sex and fertility cycles shape birth seasonality
The Importance of Automation in Genetic Diagnosis: Lessons from Analyzing an Inherited Retinal Degeneration Cohort with the Mendelian Analysis Toolkit (MATK)
Comparative sensitivity evaluation for 122 CE-marked SARS-CoV-2 antigen rapid tests
Salivary detection of COVID-19. Clinical performance of oral sponge sampling for SARS-CoV-2 testing
Making maternity and neonatal care personalised in the COVID-19 pandemic: results from the Babies Born Better Survey in the UK and the Netherlands
Photoreceptor layer thinning is an early biomarker for age-related macular degeneration development: Epidemiological and genetic evidence from UK Biobank optical coherence tomography data
A prototype vaccination model for endemic Covid-19 under waning immunity and imperfect vaccine take-up
Measurement of the extent of Anxiety and Depression that has occurred in college students due to the COVID 19 pandemic: A Survey based cross-sectional study.
Perspectives on mental illness stigma among African immigrant pregnant and post-partum women in an urban setting: a brief report
SARS-CoV-2 RNA screening in routine pathology specimens
The Effect of Temperature on Covid-19 Confirmed Cases: Evidence from US Counties
Early prediction of clinical response to checkpoint inhibitor therapy in human solid tumors through mathematical modeling
SARS-CoV-2 Sequence Characteristics of COVID-19 Persistence and Reinfection
Identities of women who have an autoimmune rheumatic disease (ARD) during pregnancy planning, pregnancy and early parenting: A qualitative study
Characteristics and outcomes of 118,155 COVID-19 individuals with a history of cancer in the United States and Spain
Estimating area-level variation in SARS-CoV-2 infection fatality ratios
Establishment and preliminary evaluation of a teaching hospital-based dementia consultation service for rurally-based regional district general hospitals
Performance of Repeat BinaxNOW SARS-CoV-2 Antigen Testing in a Community Setting, Wisconsin, November-December 2020