| http://www.w3.org/ns/prov#value | - Call your health care provider if an infant or child has symptoms of cystic fibrosis.Call your health care provider if a person with cystic fibrosis develops new symptoms or if symptoms get worse, particularly severe breathing difficulty or coughing up blood.Breathing difficultyBreathing difficulty may involve:Difficult breathingUncomfortable breathingFeeling like you are not getting enough airIma
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