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| Definition | Number of publications (%) |
| Fuchs modifications | 73 (49%) |
| Fuchs definition (1994) | 38 (26%) |
| Cystic Fibrosis Foundation (1994) | 22 (15%) |
| Early Pseudomonas Infection Control study (2009) | 12 (8%) |
| Akron Pulmonary Exacerbation Score (2009) | 4 (3%) |
| Rosenfeld definition (2001) | 4 (3%) |
