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Graph of different distribution of fluorescent dyes among EOR classes. Class 1 represents 100% of resection of the contrast-enhanced nodule; 99–90% for class 2, 89–80% for class 3 and less than 80% for class 4. An EOR of more than 90% (class 1 and 2) was obtained in 35/40 patients where 5-ALA was used as fluorophore, in 34/44 for SF and 12/15 for both.
