Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: Accuracy of four lateral flow immunoassays for anti SARS-CoV-2 antibodies: a head-to-head comparative study
Monitoring emergence of SARS-CoV-2 B.1.1.7 Variant through the Spanish National SARS-CoV-2 Wastewater Surveillance System (VATar COVID-19) from December 2020 to March 2021
COVID-HEART: Development and Validation of a Multi-Variable Model for Real-Time Prediction of Cardiovascular Complications in Hospitalized Patients with COVID-19
Reduced antibody activity against SARS-CoV-2 B.1.617.2 Delta virus in serum of mRNA-vaccinated patients receiving TNF-alpha inhibitors
A scoping review of the research integrity architecture and how it is addressed in legal frameworks, institutional policies, and the scholarly literature: Research protocol.
Past SARS-CoV-2 infection elicits a strong immune response after a single vaccine dose
Artificial Intelligence in laryngeal endoscopy: Systematic Review and Meta-Analysis
Transmission of B.1.617.2 Delta Variant between vaccinated healthcare workers in Delhi, India
Development and Initial Validation of the Duke Misophonia Questionnaire
Spatial Association of Respiratory Health with Social and Environmental Factors: Case Study of Cook County, IL
Efficacy of the NVX-CoV2373 Covid-19 Vaccine Against the B.1.1.7 Variant
The relationship of COVID-19 related stress and media consumption with schizotypy, depression and anxiety
Evaluating binary classifiers: extending the Efficiency Index
Humoral immune responses against SARS-CoV-2 variants including omicron in solid organ transplant recipients after three doses of a COVID-19 mRNA vaccine
Screening of renal function among a group of physicians working in a hospital who are often self neglected
A feasibility trial of a digital mindfulness-based intervention to improve asthma-related quality of life for primary care patients with asthma.
Socio-economic deprivation and cancer incidence in England: Quantifying the role of smoking
Maternal obesity and metabolic disorders associate with congenital heart defects in the offspring: a systematic review
Should the governance of individual treatment attempts (''Individuelle Heilversuche	'') include praxis evaluation? Results from qualitative stakeholder interviews.
Are Dutch General Practitioners willing to prescribe mifepristone and misoprostol?: a mixed-methods study
Can alcohol consumption in Germany be reduced by alcohol screening, brief intervention and referral to treatment in primary health care? Results of a simulation study
WHotLAMP: A simple, inexpensive, and sensitive molecular test for the detection of SARS-CoV-2 in saliva
Changes in HIV Treatment Differentiated Care Utilization During the COVID-19 Pandemic in Zambia
A game theory based analysis of network connectivity reveals that state transition is crucial for epilepsy surgery outcome prediction
Echocardiographic characterisation in critical Covid19 - an observational study
Rapid rise in paediatric COVID-19 hospitalisations during the early stages of the Omicron wave, Tshwane District, South Africa