103043
It is principally used in the treatment of cystic fibrosis , but is gaining use in the treatment of other diseases , such as bronchiectasis , COPD , cerebral palsy and muscular dystrophy , in which excessive mucus can block airways due to excessive production or impaired clearance .
 cystic fibrosis, bronchiectasis, COPD, cerebral palsy, muscular dystrophy
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 cystic fibrosis, bronchiectasis, COPD, cerebral palsy, muscular dystrophy