Instruct: Identify the main category of the given medRxiv paper based on the title.
Query: The relationship of major diseases with childlessness: a sibling matched case-control and population register study in Finland and Sweden
Rare coding variants in five DNA damage repair genes associate with timing of natural menopause
Existence of SARS-CoV-2 RNA on ambient particulate matter samples: A nationwide study in Turkey
Multi-omic landscaping of human midbrains identifies neuroinflammation as major disease mechanism in advanced-stage Parkinson's disease
Virtual reality exercise to help COVID patients with refractory breathlessness
COVID-19 Health Care Behaviour in The Gambia: a cross-sectional survey of 205 adults who went through mandatory institutional quarantine
Hyperconnectivity and altered dynamic interactions of a nucleus accumbens network in post-stroke depression
Patient and physician shared decision making behaviors in oncology: Evidence on adequate measurement properties of the iSHARE questionnaires
Risk of myocarditis following sequential COVID-19 vaccinations by age and sex
Multi-objective Risk-based Resource Allocation for Urban Pandemic Preparedness: The COVID-19 Case in Bogota, Colombia
Knowledge, attitude and practice toward COVID-19 among healthcare workers in public health facilities, Eastern Ethiopia
Prediction of vaccine efficacy of the Delta variant
Exploring the relationship between womens experience of postnatal care and reported staffing measures: an observational study
Reconstructed diagnostic sensitivity and specificity of the RT-PCR test for COVID-19
Predictive performance and clinical application of COV50, a urinary proteomic biomarker in early COVID-19 infection: a cohort study
Unexplained Dyspnea and Cardiopulmonary Exercise Testing: Rationale for a Dyspnea Clinic
Psychological distress and work and social adjustment in the COVID-19 pandemic: a cross-Country analysis
An open-label randomized, controlled trial of the effect of lopinavir/ritonavir, lopinavir/ritonavir plus IFN-beta-1a and hydroxychloroquine in hospitalized patients with COVID-19 - Final results from the DisCoVeRy trial
Mortality in COVID-19 amongst women on Hormone Replacement Therapy or Combined Oral Contraception: A cohort study
Multimodal Hypersensitivity Derived from Quantitative Sensory Testing Predicts Long-Term Pelvic Pain Outcome
Quantitative SARS-CoV-2 viral-load curves in paired saliva and nasal swabs inform appropriate respiratory sampling site and analytical test sensitivity required for earliest viral detection
Good recovery of immunization stress-related responses presenting as cluster of stroke-like events following CoronaVac and ChAdOx1 vaccinations
Testing Denmark: A Danish nationwide surveillance study of COVID-19
All-cause and cause-specific mortality during and following incarceration in Brazil: a retrospective cohort study
Strategies for COVID-19 vaccination under a shortage scenario: a geo-stochastic modelling approach.
Performance and safety of induced sputum procedure in young children in Malawi: a prospective study