"Act as an expert maternal-fetal medicine specialist and medical educator. Create a comprehensive, 50-slide PowerPoint presentation outline on Postpartum Hemorrhage (PPH). Synthesize the foundational science and clinical interventions from Williams Obstetrics, 26th Edition (2022) with the resource-specific and public-health realities outlined in the latest Ethiopian National Guideline on Prevention & Management of PPH (Federal Ministry of Health / ESOG).Instructions for the output:Divide the content across exactly 50 slides. Do not leave any gaps or skip any sections.For each slide, provide:Slide TitleBullet points for the slide text (short, precise, high-yield, and easy to read).Detailed talking points/speaker notes for every bullet point. Ensure the speaker notes are thorough, advanced enough for senior residents, and explicitly mention when a point refers to Williams vs. the Ethiopian National Guideline.Content to cover comprehensively across the 50 slides:Epidemiology & Definition: Global stats vs. local context (PPH as the leading cause of maternal mortality in Ethiopia). Compare blood loss estimation cut-offs (gravimetric/volumetric vs. vital signs changes).Etiology: The 4 Ts (Tone, Tissue, Trauma, Thrombin). Address specific local predictors identified in Ethiopia (e.g., grand multiparity, lack of ANC follow-up, age over 35, and home birth transfers).First-Line Management & The EMOTIVE Bundle: Integrate the WHO/Ethiopian National Guideline first-response bundle (Early detection at 300–500mL, simultaneous uterine massage, IV fluids [Ringer's Lactate/Normal Saline], Tranexamic Acid [TXA], and checking for Tone/Tissue/Trauma).Uterotonics Protocol Comparison: Dosing, routes, and contraindications. Explicitly map out the Ethiopian protocol availability tiers (Oxytocin as first-line, Misoprostol for resource-limited/community settings, and Carbetocin where cold chain allows) versus the Williams textbook recommendations.Escalation Management (Refractory PPH): Step-by-step progression when the first-response bundle fails. Include Non-Pneumatic Anti-Shock Garments (NASG), Condom Catheter / Uterine Balloon Tamponade (UBT), and bimanual/aortic compression.Surgical Interventions: Compression sutures (B-Lynch), uterine/internal iliac artery ligations, and peripartum hysterectomy.Systemic Stabilization: Mass Transfusion Protocols (MTP) and crystalloid/colloid volume limits according to the Ethiopian guidelines (up to 2L crystalloid limits) vs. advanced ICU settings.Post-PPH Care: Complications (Sheehan syndrome, DIC, acute renal failure), maternal debriefing, and documentation.Keep all phrasing professional, evidence-based, clinically precise, and perfectly tailored for a presentation to hospital seniors and residents."