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

• An appraisal of the methodology and quality of evidence of systematic reviews on the efficacy of prone positional ventilation in adult patients with acute respiratory distress syndrome: an umbrella review1 passage
• Anticoagulation in chronic thromboembolic pulmonary hypertension: an updated systematic review and meta-analysis1 passage
• Anticoagulation therapy early is safe in portal vein thrombosis patients with acute variceal bleeding: a multi-centric randomized controlled trial1 passage
• Association between electronic cigarette use and prediabetes, diabetes, and insulin resistance: a systematic review and meta-analysis1 passage
• Diagnostic accuracy of novel serological biomarkers to detect acute mesenteric ischemia: a systematic review and meta-analysis1 passage
• Frailty and its influence on mortality and morbidity in COPD: A Systematic Review and Meta-Analysis1 passage
• Interventions to improve the quality of low back pain care in emergency departments: a systematic review and meta-analysis1 passage
• Optimal timing of endoscopy for acute upper gastrointestinal bleeding: a systematic review and meta-analysis1 passage
• Prevalence of new-onset atrial fibrillation in hospitalized patients with community-acquired pneumonia: a systematic review and meta-analysis1 passage
• Prevalence of signs and symptoms in posterior circulation ischemic stroke: a systematic review and meta-analysis1 passage
• The role of point-of-care ultrasound in the evaluation and management of hyponatremia: a systematic review1 passage