Instruct: Identify the main category of Medrxiv papers based on the titles.
Query: Effect of COVID-19 vaccination on menstrual periods in a retrospectively recruited cohort
Observable Variations in Human Sex Ratio at Birth
Patient-Centered Approach Might Effectively Tackle The Definition Of Progression In Chronic Neurological Diseases: Results From the EmBioProMS Trial in Progressive Multiple Sclerosis.
A cohort of 222 anti-CD20 treated patients with multiple sclerosis followed through the COVID-19 pandemic: Attenuated humoral but robust cellular immune responses after vaccination and infection
Theoretical derivation and clinical validation of the resolution limit of human eye to spherical lens change：A Self-controlled Study
Country-level Association of Socioeconomic, Environmental and Healthcare-Related Factors with the Disease-Burden and Mortality Rate of COVID-19
SARS-CoV-2 vaccine breakthrough infections with the alpha variant are asymptomatic or mildly symptomatic among health care workers.
Sleep in Frontline Healthcare Workers on Social Media During the COVID-19 Pandemic
Automated processing of thermal imaging to detect COVID-19
Cone Rescue with Laser Photobiomodulation in Murine and Human Retinal Dystrophy
Household transmission of SARS-CoV-2; a prospective longitudinal study showing higher viral load and transmissibility of the Alpha variant compared to previous strains
Progression of COVID19 Pandemic in India: A Concurrent Linear Regression Analysis Approach
Lessons learned from implementation of interferon-gamma release assay to screen for latent tuberculosis infection in a large multicenter observational cohort study in Brazil
Performance of RT-PCR on saliva specimens compared to nasopharyngeal swabs for the detection of SARS-CoV-2 in children: A prospective comparative clinical trial
Community end-of-life care during the COVID-19 pandemic: Initial findings of a UK primary care survey
Modelling COVID -19 Transmission in a Hemodialysis Centre Using Simulation Generated Contacts Matrices
Genomics of Post-Vaccination SARS-CoV-2 Infections During the Delta Dominated Second Wave of COVID-19 Pandemic, from Mumbai Metropolitan Region (MMR), India
The effect of pre-anaesthetic assessment clinic: a systematic review of randomised and non-randomised prospective controlled studies
Correlation between times to SARS-CoV-2 symptom onset and secondary transmission undermines epidemic control efforts
Recognition of Diabetes in a Multi-ethnic Population: Results from a Nationally Representative Population-Based Study
Cryptic transmission of SARS-CoV-2 and the first COVID-19 wave in Europe and the United States
Clinical EEG slowing induced by electroconvulsive therapy is better described by increased frontal aperiodic activity
Serial interval of COVID-19 and the effect of Variant B.1.1.7: analyses from a prospective community cohort study (Virus Watch).
Deep transcriptome profiling of multiple myeloma with quantitative measures using the SPECTRA approach
Prevalence of dementia in elderly age population of Barangay Bangkal, City
Reduction in severity of all-cause gastroenteritis requiring hospitalisation in children vaccinated against rotavirus in Malawi