Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: COVID-19 in pregnancy: characteristics and outcomes of pregnant women admitted to hospital because of SARS-CoV-2 infection in the Nordic countries.
High mortality of COVID-19 associated mucormycosis in France: a nationwide retrospective study
The Role of Community Health Workers in Oral Health Promotion and the Impact of their services in Sub-Saharan Africa: A Systematic Review.
Extended Effects of a Wearable Sensory Prosthesis on Gait, Balance Function and Falls After 26 Weeks of Use in Persons with Peripheral Neuropathy and High Fall Risk: The walk2Wellness Trial
The effect of COVID-19 on critical care research: A prospective longitudinal multinational survey
Stringency of the containment measures in response to COVID-19 inversely correlates with the overall disease occurrence over the epidemic wave
First detection of SARS-CoV-2 Delta variant (B.1.617.2) in the wastewater of (Ahmedabad), India
Inferring the COVID-19 IFR with a simple Bayesian evidence synthesis of seroprevalence study data and imprecise mortality data
Estimating the impact of implementation and timing of COVID-19 vaccination program in Brazil: a counterfactual analysis
Octreotide may improve pharyngocutaneous fistula healing through downregulation of cystatins: a pilot study
The potential for bike riding across entire cities: quantifying spatial variation in interest in bike riding
Psychosocial factors associated with mental health and quality of life during the COVID-19 pandemic among low-income urban dwellers in Peninsular Malaysia
Genetic and environmental correlations between complex phenotypes differ by race/ethnicity and sex
Development of a core measurement set for research in degenerative cervical myelopathy: a study protocol (AO Spine RECODE-DCM CMS)
A fast and robust strategy to remove variant level artifacts in Alzheimer's Disease Sequencing Project data
The retrospective observational study of clinical outcomes of single dose infusion of warm blood cardioplegia in patients undergoing cardiac surgery
Why is leptospirosis hard to avoid for the impoverished? Deconstructing leptospirosis transmission risk and the drivers of knowledge, attitudes, and practices in a disadvantaged community in Salvador, Brazil
Bicentric evaluation of stabilizing sampling tubes for assessment of monocyte HLA-DR expression in clinical samples
The indirect effect of mRNA-based Covid-19 vaccination on unvaccinated household members
Systematic searching in Ovid Embase: understanding the MEDLINE document collection and identifying conference records
Chronic kidney disease in Low- and Middle- Income Countries: Protocol for a systematic review of diagnostic and prognostic models
Shifting research priorities in maternal and child health in the COVID-19 pandemic era in India: a renewed focus on systems strengthening
Exploring the Relationship of Rush Hour Period and Fatal and Non-Fatal Crash Injuries In The U.S.: A Systematic Review and Meta-Analysis
Investigating the causal relationship between allergic disease and mental health
Navigating sample overlap, winner's curse and weak instrument bias in Mendelian randomization studies using the UK Biobank
Characterizing the Modern Light Environment and its Influence on Circadian Rhythms