Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Mental health in relation to changes in sleep, exercise, alcohol and diet during the COVID-19 pandemic: examination of four UK cohort studies
Who Develops Pandemic Fatigue?
Sequencing Data of North American SARS-CoV-2 Isolates Shows Widespread Complex Variants
Low SARS-CoV-2 infection rate and high vaccine-induced immunity among German healthcare workers at the end of the third wave of the COVID-19 pandemic
Performance evaluation of a non-invasive one-step multiplex RT-qPCR assay for detection of SARS-CoV-2 direct from human saliva
Cognitive function and vitamin B12 and D in elders from Ecuador
Puberty and sex-specific trajectories of systolic blood pressure: a prospective cohort study
Monogenic and Polygenic Contributions to QTc Prolongation in the Population
Quarantine and testing strategies to ameliorate transmission due to travel during the COVID-19 pandemic: a modelling study
Lessons from a pandemic
Problems with Evidence Assessment in COVID-19 Health Policy Impact Evaluation (PEACHPIE): A systematic review of evidence strength
BREAst screening Tailored for HEr (BREATHE) - A Study Protocol On Personalised Risk-based Breast Cancer Screening Programme
Convolution Neural Networks for Point-of-Care Diagnostics of Bacterial Infections in Blood
Genome-wide association study identifies two new loci associated with anti-NMDAR encephalitis
Hexosylceramides and glycerophosphatidylcholine GPC(36:1) increase in Multi Organ Dysfunction Syndrome patients with Pediatric Intensive Care Unit Admission over 8 day hospitalization
Validation of a transcriptome-based assay for classifying cancers of unknown primary origin
Improved screening of COVID-19 cases through a Bayesian network symptoms model and psychophysical olfactory test
Risk assessment for airborne disease transmission by poly-pathogen aerosols
Back to the medical classes-Part I- Strategy for return to the presential practices during COVID-19 pandemics in a Brazilian Medical School
Integrative modelling of reported case numbers and seroprevalence reveals time-dependent test efficiency and infection rates
Primary care clinical management following self-harm during the first wave of COVID-19 in the UK
Can a COVID-19 vaccination program guarantee the return to a pre-pandemic lifestyle?
Nuclear Morphometry is a superior Prognostic Predictor in comparison to Histological grading in Renal cell Carcinoma: A Retrospective Clinico-pathological study
Stress signaling and STAT1 activation characterize the keratinocytic gene expression pattern in Hidradenitis suppurativa
Significant Excess Mortality probably due to COVID-19 in Tokyo, Japan until May, 2021
A SARS-CoV-2 Delta Variant Containing Mutation in the Probe Binding Region Used for qRT-PCR Test in Japan Exhibited Atypical PCR Amplification and Might Induce False Negative Result