Quittner, A. L., Modi, A. C., Wainwright, C., Otto, K., Kirihara, J., & Montgomery, A. B. (2009). Determination of the Minimal Clinically Important Difference Scores for the Cystic Fibrosis Questionnaire-Revised Respiratory Symptom Scale in Two Populations of Patients With Cystic Fibrosis and Chronic Pseudomonas aeruginosa Airway Infection. American College of Chest Physicians.

Quittner, Alexandra L., Avani C. Modi, Claire Wainwright, Kelly Otto, Jean Kirihara, and A. Bruce Montgomery. Determination of the Minimal Clinically Important Difference Scores for the Cystic Fibrosis Questionnaire-Revised Respiratory Symptom Scale in Two Populations of Patients With Cystic Fibrosis and Chronic Pseudomonas Aeruginosa Airway Infection. American College of Chest Physicians, 2009.

Quittner, Alexandra L., et al. Determination of the Minimal Clinically Important Difference Scores for the Cystic Fibrosis Questionnaire-Revised Respiratory Symptom Scale in Two Populations of Patients With Cystic Fibrosis and Chronic Pseudomonas Aeruginosa Airway Infection. American College of Chest Physicians, 2009.