Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: A systematic review about skin lesions in children affected by Coronavirus Disease 2019 (excluding multisystem inflammatory syndrome in children): study protocol.
Multisystem inflammatory syndrome in European White children - study of 274 cases
Oxygen saturation instability in suspected covid-19 patients; contrasting effects of reduced VA/Q and shunt.
Triangulating Causality Between Childhood Obesity and Neurobehavior: Twin and Longitudinal Evidence
Changes in the trajectory of Long Covid symptoms following COVID-19 vaccination: community-based cohort study
A Platform for Data-centric, Continuous Epidemiological Analyses
Relative burdens of the COVID-19, malaria, tuberculosis and HIV/AIDS epidemics in sub-Saharan Africa
Genomics and epidemiology of a novel SARS-CoV-2 lineage in Manaus, Brazil
Viral Cultures for Assessing Airborne Transmission of SARS-CoV-2: a Systematic Review Protocol
An Accurate Model for SARS-CoV-2 Pooled RT-PCR Test Errors
Geographically-targeted COVID-19 vaccination is more equitable than age-based thresholds alone
Quality of life profile of methadone maintenance treatment patients in Ho Chi Minh City, Vietnam
Reports of myocarditis and pericarditis following mRNA COVID-19 vaccines: A review of spontaneously reported data from the UK, Europe, and the US
Data-Driven Prediction of COVID-19 Cases in Germany for Decision Making
Protection against omicron severe disease 0-7 months after BNT162b2 booster
Early genomic, epidemiological, and clinical description of the SARS-CoV-2 Omicron variant in Mexico City
Large-scale social media language analysis reveals emotions and behaviours associated with nonmedical prescription drug use
Air pollution exposure and mitochondrial DNA copy number in the UK Biobank
The Effects of Pericapsular nerve group (PENG) block on Postoperative Recovery in Elderly Patients with Hip fracture: a study protocol for randomized, parallel controlled, double-blind trial
Modelling to explore the potential impact of asymptomatic human infections on transmission and dynamics of African sleeping sickness
Increased SAR-CoV-2 shedding associated with reduced disease severity despite continually emerging genetic variants
S-ketamine in patient-controlled analgesia with oxycodone improves analgesia in a dose-dependent manner after major lumbar fusion surgery: a randomized, double-blind, placebo-controlled clinical trial
Strengthening health systems capacity for pre-exposure Prophylaxis for adolescent girls and young women and adolescent boys and young men in South Africa (SHeS'Cap - PrEP): Protocol for a mixed methods study in KwaZulu-Natal, South Africa
Trends in clinical characteristics and associations of severe non-respiratory events related to SARS-CoV-2
A system biology approach identifies candidate drugs to reduce mortality in severely ill COVID-19 patients
Machine Learning for Mechanical Ventilation Control