Is shortness of breath serious?

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Tags

  1. #shortness
  2. #exercise
  3. #breath
  4. #congestion
  5. #sometimes
  6. #situations
  7. #result
  8. #dyspnea
  9. #difficulty
  10. #nasal
  11. #heart
  12. #harmless
  13. #serious
  14. #disease
  15. #called
  16. #other
  17. #breathing