Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: Open science policies of medical and health sciences journals before and during the COVID-19 pandemic: a repeat cross-sectional study
Sword of Damocles or choosing well. Population genetics sheds light into the future of the COVID-19 pandemic and SARS-CoV-2 new mutant strains.
Analysis of the Factors Affecting the Adoption and Compliance of the NHS COVID-19 Mobile Application
Animals in higher education settings: Do animal-assisted interventions improve mental and cognitive health outcomes of students?  A systematic review and meta-analysis
Clinical characteristics with inflammation profiling of Long-COVID and association with one-year recovery following hospitalisation in the UK: a prospective observational study
Benefits and Cost of a $35 Insulin Cost-Sharing Cap for Medicare Patients
Real-Time Semi-Automated and Automated Voxel Placement for Repeated Acquisition Magnetic Resonance Spectroscopy
Predictive and analysis of COVID-19 cases cumulative total;ARIMA model based on machine learning
Pre-COVID-19 pandemic health-related behaviours in children (2018-2020) and association with being tested for SARS-CoV-2 and testing positive for SARS-CoV-2 (2020-2021): a retrospective cohort study using survey data linked with routine health data in Wales, UK
Vitamins D2 and D3 have overlapping but different effects on human gene expression revealed through analysis of blood transcriptomes in a randomised double-blind placebo-controlled food-fortification trial
Simple risk scores to predict hospitalization or death in outpatients with COVID-19
Diagnosis of COVID-19 from X-rays Using Combined CNN-RNN Architecture with Transfer Learning
Evaluation of a SARS-CoV-2 Vaccine NVX-CoV2373 in Younger and Older Adults
Von Meyenburg Complexes and Malignancy: A Systematic Review
A Novel Home-Based Study of Circadian Rhythms: Design, Rationale, and Methods for the Circadia Study.
Antibiotic courses for acute otitis media alter human gut microbiome resistome and colonization resistance against antimicrobial resistant species in children
Health workers Motivators to uptake of the Covid-19 vaccine at Iganga Hospital Eastern Uganda, and Mengo Hospital Kampala Uganda; A qualitative study
Prior SARS-CoV2 infection in vaccinated solid organ transplant recipients induces potent neutralization responses against variants, including Omicron
Hypoxaemia prevalence and management among children and adults presenting to primary care facilities in Uganda: a prospective cohort study.
Food Security Impacts of the COVID-19 Pandemic: Following a Cohort of Vermonters During the First Year
Calorie reformulation: A systematic review and meta-analysis examining the effect of manipulating food energy density on daily energy intake and body weight
Genomic characterization of invasive typhoidal and non-typhoidal Salmonella in southwestern Nigeria
Exploring the Behavioral Determinants of COVID-19 Vaccine Acceptance among an Urban Population in Bangladesh: Implications for Behavior Change Interventions
Structural inequalities in the pathway to COVID-19 immunity
Protective antibodies and T cell responses to Omicron variant three months after the booster dose of BNT162b2 vaccine
SELP Asp603Asn and severe thrombosis in COVID-19 males: implication for anti P-selectin monoclonal antibodies treatment