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Walk the evidence base by book and chapter — the raw source passages that ground Ask, Differential, and the rest.

• A Call for Low- and Middle-Income Countries to Commit to the Elimination of Cervical Cancer.1 passage
• A longitudinal study of convergence between Black and White COVID-19 mortality: A county fixed effects approach.1 passage
• A single dose of SARS-CoV-2 FINLAY-FR-1A vaccine enhances neutralization response in COVID-19 convalescents, with a very good safety profile: An open-label phase 1 clinical trial.1 passage
• Association between government policy and delays in emergent and elective surgical care during the COVID-19 pandemic in Brazil: a modeling study.1 passage
• COVID-19 vaccination intention during early vaccine rollout in Canada: a nationwide online survey.1 passage
• Clinical characteristics of the first and second COVID-19 waves in the Bronx, New York: A retrospective cohort study.1 passage
• Cost-Effectiveness of the COVID-19 Test, Trace and Isolate Program in Colombia.1 passage
• County-Level Impact of the COVID-19 Pandemic on Excess Mortality Among U.S. Veterans: A Population-Based Study.1 passage
• Effectiveness of CoronaVac among healthcare workers in the setting of high SARS-CoV-2 Gamma variant transmission in Manaus, Brazil: A test-negative case-control study.1 passage
• Effectiveness of Policies for Addressing the US Opioid Epidemic: A Model-Based Analysis from the Stanford-Lancet Commission on the North American Opioid Crisis.1 passage
• Efficacy and safety of hydroxychloroquine as pre-and post-exposure prophylaxis and treatment of COVID-19: A systematic review and meta-analysis of blinded, placebo-controlled, randomized clinical trials.1 passage
• Estimation of all-cause excess mortality by age-specific mortality patterns for countries with incomplete vital statistics: a population-based study of the case of Peru during the first wave of the COVID-19 pandemic.1 passage
• Factors Associated With SARS-CoV-2 Infection in Bogotá, Colombia: Results From a Large Epidemiological Surveillance Study.1 passage
• Fire association with respiratory disease and COVID-19 complications in the State of Pará, Brazil.1 passage
• First and second COVID-19 waves in Brazil: A cross-sectional study of patients' characteristics related to hospitalization and in-hospital mortality.1 passage
• Impact of Coronavirus-2019 On Pediatric and Adult Heart Transplantation Waitlist Activity and Mortality in The United States: A Descriptive Approach.1 passage
• Lives saved and hospitalizations averted by COVID-19 vaccination in New York City: a modeling study.1 passage
• Long-term analysis of antibodies elicited by SPUTNIK V: A prospective cohort study in Tucumán, Argentina.1 passage
• Mean blood pressure according to the hypertension care cascade: Analysis of six national health surveys in Peru.1 passage
• Model-based assessment of SARS-CoV-2 Delta variant transmission dynamics within partially vaccinated K-12 school populations.1 passage
• Patterns and descriptors of COVID-19 testing and lab-confirmed COVID-19 incidence in Manitoba, Canada, March 2020-May 2021: A population-based study.1 passage
• Persistent depressive symptoms during COVID-19: a national, population-representative, longitudinal study of U.S. adults.1 passage
• Post-COVID-19 conditions in Ecuadorian patients: an observational study.1 passage
• Prevalence, severity and distribution of depression and anxiety symptoms using observational data collected before and nine months into the COVID-19 pandemic.1 passage
• Public trust, information sources and vaccine willingness related to the COVID-19 pandemic in Trinidad and Tobago: an online cross-sectional survey.1 passage
• Real-world effectiveness of the mRNA-1273 vaccine against COVID-19: Interim results from a prospective observational cohort study.1 passage
• Repeat positive SARS-CoV-2 RNA testing in nursing home residents during the initial 9 months of the COVID-19 pandemic: an observational retrospective analysis.1 passage
• Risk of mortality for small newborns in Brazil, 2011-2018: A national birth cohort study of 17.6 million records from routine register-based linked data.1 passage
• Risk-based antihypertensive treatment allocation in Peru: comparison of local and international guidelines analysing national health surveys between 2015-2020.1 passage
• SARS-CoV-2 infection of the central nervous system in a 14-month-old child: A case report of a complete autopsy.1 passage
• Seropositivity of COVID-19 among asymptomatic healthcare workers: A multi-site prospective cohort study from Northern Virginia, United States.1 passage
• Socioeconomic inequalities in low birth weight risk before and during the COVID-19 pandemic in Argentina: A cross-sectional study.1 passage
• Spatial clusters, social determinants of health and risk of maternal mortality by COVID-19 in Brazil: a national population-based ecological study.1 passage
• The association of COVID-19 infection in pregnancy with preterm birth: A retrospective cohort study in California.1 passage
• The emergence of novel SARS-CoV-2 variant P.1 in Amazonas (Brazil) was temporally associated with a change in the age and sex profile of COVID-19 mortality: A population based ecological study.1 passage
• The income gradient in COVID-19 mortality and hospitalisation: An observational study with social security administrative records in Mexico.1 passage
• Vaccination reduces need for emergency care in breakthrough COVID-19 infections: A multicenter cohort study.1 passage