Do carriers of cystic fibrosis have any symptoms?

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  1. #respiratory
  2. #problems
  3. #carriers
  4. #meaning
  5. #include
  6. #asymptomatic
  7. #sinusitis
  8. #carrier
  9. #symptoms
  10. #approximately
  11. #americans
  12. #defective
  13. #symptomless
  14. #bronchitis