J M van der Put

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A modified Chrispin-Norman score was used to investigate at what age typical X-ray signs of cystic fibrosis (CF) appear and for the follow-up of patient with CF. Scores of patients with chronic obstructive lung disease (COLD) and with innocent heart murmurs were used for comparison. The findings were: 1. Hyperinflation and line shadows are early but not(More)
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