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  1. Symptoms of Vitamin B Deficiency - Healthline

  2. What Is Vitamin B2 (Riboflavin) and What Does It Do? - Healthline

  3. Riboflavin – Vitamin B2 – The Nutrition Source

  4. 4 Signs And Symptoms Of A Vitamin B2 (Riboflavin) Deficiency

  5. Riboflavin Deficiency - Riboflavin Deficiency - MSD Manual ...

  6. Riboflavin - Health Professional Fact Sheet

  7. Vitamin B2 (Riboflavin): Deficiency Symptoms, Benefits, and ...

  8. Riboflavin Deficiency - StatPearls - NCBI Bookshelf

  9. Vitamin B2 (Riboflavin) Information | Mount Sinai - New York

  10. Vitamin B2: Role, sources, and deficiency - Medical News Today

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