<prompt> Cystic fibrosis affects all systems EXCEPT:RespiratoryEndocrineHepatobiliaryGenitourinary  <response>: ANSWER: B EndocrineREF: Harrisons Internal Medicine, Chapter 253, Davidsons internal medicine 20tSl edition page- 685FEATURES OF CYSTIC FIBROSIS:A- Autosomal recessiveB- BronchiectasisC- Chloride channel blockCiliary dysfunctionD- Diabetes mellitusE- Exocrine pancreatic failure 90 of patients with CFF- Fat malabsorption steatorrhoeaG- Gall stoneGene mutation on chromosome 7H- Hepatic cirrhosisHemoptysisI- Intestinal obstructionInfertility 