The chest roentgenogram in cystic fibrosis: a new scoring system.

A roentgenogram scoring system is presented that is useful in the evaluation 
and follow-up of patients with cystic fibrosis. The system has been 
shown to be reproducible by and between observers and to correlate 
significantly with results of pulmonary function tests, Shwachman-Kulczycki scores, and, in 
a short-term evaluation, morbidity. 