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517,985 subject pages: 4,516 OpenAlex topics and 513,469 Library of Congress subjects. Exact coverage and source dates · Numeric map and gap method
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Child and Adolescent Psychosocial and Emotional Development
Breast Cancer Treatment Studies
Plant Molecular Biology Research
Lymphoma Diagnosis and Treatment
Nursing education and management
Radio Frequency Integrated Circuit Design
Advanced machining processes and optimization
Anesthesia and Pain Management
Air Quality and Health Impacts
Robotics and Sensor-Based Localization
Catalytic Processes in Materials Science
Coronary Interventions and Diagnostics
Nonlinear Partial Differential Equations
Antimicrobial Resistance in Staphylococcus
Pain Mechanisms and Treatments
Membrane Separation Technologies
Heart Failure Treatment and Management
Wildlife Ecology and Conservation
Rheumatoid Arthritis Research and Therapies
Speech Recognition and Synthesis
Lung Cancer Diagnosis and Treatment
Recommender Systems and Techniques
Microstructure and mechanical properties
Advanced Fiber Optic Sensors
Meta-analysis and systematic reviews
Advanced biosensing and bioanalysis techniques
Labor market dynamics and wage inequality
Global Maternal and Child Health
Advanced oxidation water treatment
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