Bing found the following results
  1. Cystic fibrosis - Symptoms and causes - Mayo Clinic

  2. Cystic fibrosis - Wikipedia, the free encyclopedia

  3. Cystic Fibrosis: Causes, Symptoms & Treatment - Cleveland Clinic

  4. About Cystic Fibrosis | Cystic Fibrosis Foundation

  5. Cystic Fibrosis: Causes, Diagnosis, and Treatment - Healthline

  6. Cystic Fibrosis - What Is Cystic Fibrosis? | NHLBI, NIH

  7. Cystic fibrosis - Diagnosis and treatment - Mayo Clinic

  8. Cystic Fibrosis | Johns Hopkins Medicine

  9. Cystic Fibrosis | CDC - Centers for Disease Control and Prevention

  10. Intro to CF | Cystic Fibrosis Foundation