Ejection Fraction Heart Failure Measurement
Jun 14, 2023 · Ejection fraction (EF) is a measurement, expressed as a percentage, of how much blood the left ventricle pumps out with each contraction. An ejection fraction of 60 percent means that 60 percent of the total amount of blood in the left ventricle is pushed out with each heartbeat.
EF Education First | Educational Tours & Language Programs Abroad
Learn a language faster at one of 50 accredited EF campuses abroad. Study alongside students from over 100 countries and start any Monday. Boost your global career with personalized language courses in one of the world’s top cities. Designed for adults and professionals.
EF Education First | Global Site (English)
Learn a language faster at one of 50 accredited EF campuses abroad. Study alongside students from over 100 countries and start any Monday.
Who we are | EF United States - EF Education First
The EF English Proficiency Index (EF EPI) is the world’s largest ranking of countries/regions by adult English skills. The index ranks over 100 countries and regions based on test data from two million adults.
Who we are | EF Global Site (English) - EF Education First
The EF English Proficiency Index (EF EPI) is the world’s largest ranking of countries/regions by adult English skills. The index ranks over 100 countries and regions based on test data from two million adults.
EF Education First: Choose Location
Whether you’re looking for sprachreisen, séjours linguistiques, intercambios, student exchange, vacanze studio or 留学, EF has a wide variety of educational programs for all ages. Choose your location to learn more about what we offer: North America. Canada / English. Canada / Français. México / Español. United States / English.
EF programs | EF United States - EF Education First
EF, world leader in international education since 1965. Offering educational tours, immersion language learning, cultural exchange and academic programs around the world.
EF Education First - Wikipedia
EF Education First (abbreviated as EF) is an international education company that specialises in language training, educational travels, academic degree programmes, and cultural exchanges.
English courses online | Learn English online | EF English Live
The world's #1 online English courses. Our interactive learning experience simulates real-life scenarios as if you are learning in an English-speaking country. Join classes 24/7 from anywhere and progress faster with the most motivating method. Get started Get matched to a course.
EF Campus Learning
Language learning made easy, effective and fun. A high-end academic platform that helps you improve fast. Get diverse activities to practice speaking, listening, grammar, vocabulary and other skills. Students attending EF classes also get assignments …