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What is a rare disease and what causes it?

Did you know these 10 rare disease facts? Watch now and find more educational content on YouTube from NORD’s Rare Disease Video Library. Created with experts and patient organizations to empower rare patients and caregivers. 💡 https://bit.ly/42AYn2e EDITOR'S NOTE: Since this video was created, there have now been more than 10,000 rare diseases discovered! | National Organization for Rare Disorders, Inc. (NORD)