Instruct: Identify the main category of the given Medrxiv paper based on the title.
Query: The Effective Coverage of Maternal and Child Primary Health Care Services and its Relationship with Health Expenditures: An Analysis at Sub-National Level in Iran
Assessing the Impact of the Covid-19 Pandemic on US Mortality: A County-Level Analysis
Antibody responses to SARS-CoV-2 vaccination in patients with acute leukaemia and high risk MDS on active anti-cancer therapies
SARS-CoV-2 infection of BNT162b2(mRNA)-vaccinated individuals is not restricted to variants of concern or high-risk exposure environments
Relative humidity predicts day-to-day variations in COVID-19 cases in the city of Buenos Aires
Analysis of Data Use Registers published by health data custodians in the UK
Effect of the third dose of BNT162b2 vaccine in quantitative SARS-CoV-2 spike 1-2 IgG antibody titers in healthcare workers
Genetic overlap between Alzheimer's disease and depression mapped onto the brain
Cost-effectiveness of COVID-19 vaccination in low- and middle-income countries
CuNA: Cumulant-based Network Analysis of genotype-phenotype associations in Parkinson's Disease
Correlation of SARS-CoV-2 serology and clinical phenotype amongst hospitalised children in a tertiary children's hospital in India
Pathway-based Rare Variant Burden Analysis Identifies a Role for the Complement System in an Extreme Phenotype of Sepsis with Coagulopathy
More than 50 Long-term effects of COVID-19: a systematic review and meta-analysis
On the survival of individuals diagnosed with type 2 diabetes mellitus in the United Kingdom: a retrospective matched cohort study
External validation and updating of a prediction model for the diagnosis of gestational diabetes mellitus
BNT162b2 COVID-19 mRNA vaccine elicits a rapid and synchronized antibody response in blood and milk of breastfeeding women
Homologous and Variant-Specific Memory B-Cell and Antibody Responses after SARS-CoV-2 mRNA Vaccination
Rare variants in the outcome of social skills group training for autism
Omicron-specific cytotoxic T-cell responses are boosted following a third dose of mRNA COVID-19 vaccine in anti-CD20-treated multiple sclerosis patients
Detecting Pathogen-Associated RNA via Piecewise Isothermal Testing achieving Sample-to-Result Integration
Neurofeedback-guided kinesthetic motor imagery training in Parkinson's disease: Randomized trial
Comparing phrenic nerve stimulation using three rapid coils: implications for mechanical ventilation
Genetically personalised organ-specific metabolic models in health and disease
Association of Body Anthropometry and Obstructive Sleep Apnea in Children: Impact of Hispanic Ethnicity
Pattern of fibrin stabilizing factor (FXIII) expression in placentas of women suffering with gestational diabetes mellitus in Saint John, New Brunswick
Impact of body mass index on 5-year survival rates in patients undergoing allogeneic hematopoietic stem cell transplantation